Note

Medium Risk
Moderate risk because it swaps the underlying Button implementation across multiple confirmation keyboards/modals, which could subtly change disabled/press behavior and layout in transaction-critical screens.

Overview
Migrates confirmation-flow buttons from the deprecated component-library Button to @metamask/design-system-react-native, updating APIs (e.g., label to children, disabled to isDisabled, width to isFullWidth, and new ButtonVariant enums) across keyboards, developer options, transaction retry, and gas/alert/spending-cap modals.

Updates associated tests and snapshots to match the new rendered structure/props, including switching assertions to toBeDisabled() / toBeEnabled().

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