This commit updates the icon used for `MeshtasticIcons.Channel` from `Tsunami` to `Radio` for better semantic representation.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

This commit centralizes all Material icons used throughout the app into a `MeshtasticIcons` object. This change improves maintainability and consistency by providing a single source of truth for icons, making it easier to manage and update them across the entire codebase.

Instead of calling `Icons.Default.SomeIcon` directly in composables, the code now uses `MeshtasticIcons.SomeIcon`. This abstraction decouples the UI from the specific Material Icons implementation.

### Key Changes:

-   **`MeshtasticIcons` API:**
    -   A `MeshtasticIcons` singleton object has been created in `core/ui/icon/`.
    -   Icons are organized into semantic categories using extension files (e.g., `Actions.kt`, `Hardware.kt`, `Security.kt`, `Status.kt`).

-   **Code Refactoring:**
    -   All direct usages of `androidx.compose.material.icons` have been replaced with calls to the new `MeshtasticIcons` API.
    -   This refactoring spans multiple features, including `node`, `messaging`, `firmware`, and `contacts`.

-   **Cleanup:**
    -   Removed redundant icon imports from all modified files.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

This commit introduces a set of numbered icons for channels 0 through 8 and refactors various UI components for better code consistency and readability.

### Key Changes:

- **New Channel Counter Icons:**
  - Added new drawable resources for icons representing numbers 0 through 8 (`counter_0_24px` to `counter_8_24px`).
  - Created a new `Counter.kt` file to expose these icons through the `MeshtasticIcons` API.
  - The `ChannelInfo` composable now uses these specific "counter" icons for channels 0-8, providing a more intuitive visual representation of the channel number. For other channels, it falls back to the generic `Channel` icon.

- **Traceroute Icon Change:**
  - Replaced the `Hops` icon (`CrueltyFree`) with a more appropriate `Route` icon (`Route`) across all traceroute-related screens (`TracerouteLog`, `TracerouteMapScreen`).

- **Code Style and Cleanup:**
  - Updated copyright year to 2026 across all modified files.
  - Removed redundant empty lines after package declarations.
  - Standardized the formatting of `Icon` and `Row` composables for better readability.
  - Explicitly defined getters for all `MeshtasticIcons` properties, improving code consistency.
  - Corrected a typo in an encryption error string.
  - Unified the icon for the "Environment" telemetric feature to `Temperature`.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

This commit refactors the `NodeItem` composable to improve its layout, readability, and visual consistency. The layout has been reorganized to use `Arrangement.SpaceBetween` for better alignment and distribution of information.

Key changes include truncating long node names to prevent UI overflow and simplifying the display of various node metrics.

### Key Changes:

-   **UI Layout:**
    -   Replaced `Spacer(modifier = Modifier.weight(1f))` and nested `Row`s with `Arrangement.SpaceBetween` in parent `Row` containers for cleaner alignment of telemetry data (battery, distance, elevation, etc.).
    -   Removed several `Spacer` components, resulting in a more compact and organized layout.

-   **Node Name Truncation:**
    -   User `longName` is now truncated to 20 characters followed by an ellipsis (`…`) if it exceeds the limit, preventing layout issues with overly long names.

-   **Styling & Components:**
    -   The `contentColor` is now passed to `NodeStatusIcons` to ensure icons correctly match the card's theme.
    -   `NodeStatusIcon` was simplified by removing the `IconButton` wrapper around the `Icon`, as it was not interactive.
    -   Code formatting has been cleaned up for better readability.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

This commit refactors the `NodeItem` composable by breaking it down into smaller, more focused subcomponents. The main `Column` layout has been organized into distinct sections, each handled by a new private composable.

This change improves readability and maintainability by isolating the logic for different parts of the UI, such as the header, metrics, environment data, and footer.

### Key Changes:

- **`NodeItemHeader`**: Encapsulates the top row, which includes the node chip, name, key status, last-heard time, and status icons.
- **`NodeItemMetrics`**: Groups metrics like battery level, voltage, distance, elevation, and satellite count.
- **`NodeItemEnvironment`**: Handles the display of all environmental sensor data, including PAX counter, temperature, humidity, and air quality.
- **`NodeItemFooter`**: Contains the bottom row with hardware model, role, and node ID.
- **`NodeItem`**: The parent composable is now simplified to a `Column` that arranges these new components with spacers.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

This commit refactors the UI to standardize on the `rounded` theme for all Material Icons, providing a softer and more consistent visual style across the application. It also introduces several layout and information display improvements to the `NodeItem` and `NodeDetailsSection` components.

### Key Changes:

-   **Icon Theming:**
    -   All Material Icon imports have been updated from `Icons.Default` or `Icons.Filled` to `Icons.Rounded` across all icon sets (`Actions`, `Device`, `Person`, `Security`, `Signal`, `Status`, `Telemetry`). This ensures a unified, modern look for all icons.

-   **NodeItem UI/UX Enhancements:**
    -   **Layout:** Replaced `Row` and `Spacer` combinations with `FlowRow` for the environmental metrics section. This allows metrics to wrap gracefully on smaller screens or when many are present, preventing overflow and improving readability.
    -   **Metrics Display:**
        -   Added `PressureInfo` to display barometric pressure.
        -   The `Uptime` metric has been moved from `NodeDetailsSection` to the `NodeItem` footer for directly connected nodes, providing at-a-glance status.
        -   The `Paxcount` display is now more concise (e.g., "B:1 W:2") for better space utilization.
        -   A spacer is now added to balance the layout when battery info is unavailable.
    -   **Signal Quality:** Signal quality information (SNR, RSSI, and quality text/icon) is now presented more compactly using `IconInfo`.

-   **New Components & Component Updates:**
    -   **`OverlayIconInfo`:** A new composable for displaying an icon with a smaller icon overlaid on top (e.g., `Soil` with `Temperature` or `Humidity`), allowing for more intuitive composite metrics.
    -   **`PressureInfo` & `UptimeInfo`:** New `IconInfo` composables for displaying their respective metrics.
    -   **Icon Change:** Replaced the `CheckCircle` icon for uptime with `ArrowCircleUp` for better semantic clarity.
    -   The `NodeItem` preview data has been updated to include new telemetry values like pressure and soil metrics.

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>

This commit updates the application's UI to use the "Rounded" theme for Material Design icons, replacing the "Default" (filled) versions. This change provides a softer and more modern aesthetic across the entire user interface.

The update is purely cosmetic and affects icons in various features, including:
- Messaging (chat actions, overflow menus, reactions)
- Node details (metrics, status indicators, actions)
- Settings screens (debugging, configuration, radio management)
- Map views (controls, waypoints)
- Core UI components (signal indicators, list items)

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>