…licked event cp-7.69.0 (#27117)

## **Description**

The sticky Buy and Sell buttons on the token details page were both
firing ACTION_BUTTON_CLICKED with button_label: "Swap", making it
impossible to distinguish between the two actions in Mixpanel.
Changes:
* Added an optional buttonLabel param to goToSwaps / goToNativeBridge in
useSwapBridgeNavigation, falls back to "Swap" so all existing callers
are unaffected
* `handleBuyPress` now passes `button_label: "Buy"` and
`handleSellPress` passes `button_label: "Sell"`

## **Changelog**

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CHANGELOG entry: updated event property for ACTION_BUTTON_CLICKED

## **Related issues**

Fixes:

## **Manual testing steps**

```gherkin
Feature: my feature name

  Scenario: user [verb for user action]
    Given [describe expected initial app state]

    When user [verb for user action]
    Then [describe expected outcome]
```

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

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### **After**

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## **Pre-merge author checklist**

- [ ] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Mobile
Coding
Standards](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I've included tests if applicable
- [ ] I've documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [ ] I've applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Low risk: changes only analytics event properties by threading an
optional `buttonLabel` through navigation helpers; swap/bridge
navigation behavior is unchanged due to a default fallback.
> 
> **Overview**
> Fixes token details *Buy*/*Sell* sticky buttons reporting
`ACTION_BUTTON_CLICKED` with `button_label: "Swap"`.
> 
> `useSwapBridgeNavigation` now accepts an optional `buttonLabel` in
`goToNativeBridge`/`goToSwaps` and uses it for `trackActionButtonClick`
(defaulting to the existing Swap label), and `useTokenActions` passes
the correct localized Buy/Sell labels; tests were updated to assert the
new arguments.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
8c1b45d. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->