… to use Styles API.

…e `CompositionLocal`.

- Deleted `CompositionLocals.kt` which used reflection to access internal Material 3 locals.
- Introduced `JetsnackTheme` class to encapsulate `JetsnackColors`, `Typography`, `Shapes`, and `AppStyles`.
- Replaced individual `LocalJetsnackColors`, `LocalAppStyles`, and Material 3 `LocalTypography`/`LocalShapes` lookups with `JetsnackTheme.colors`, `JetsnackTheme.typography`, etc.
- Added a `StyleScope.currentJetsnackTheme` helper to provide easy access to the theme within `Style` blocks.
- Moved `JetsnackColors` and color palette definitions to `Color.kt`.
- Updated `debugColors` to include newer Material 3 color roles.

- Rename `JetsnackButton`, `JetsnackSurface`, and `JetsnackText` to `Button`, `Surface`, and `Text`.
- Rename `jetsnackTextStyle` to `textStyleWithFontFamilyFix`.
- Replace `currentJetsnackTheme` with direct `colors`, `typography`, and `shapes` accessors within `StyleScope`.
- Update `AppStyles` to use the new theme accessors and refined padding properties.
- Add a ripple indication to the base `Button` component.

- Rename `AppStyles` data class to `Styles` and update all references in `JetsnackTheme`.
- Update `JetsnackCard`, `JetsnackDivider`, `JetsnackButton`, and other components to use the renamed `styles` property.
- Move border and size styling from `Modifier` to `Style` in `SnackHighlight` cards.
- Remove unused `HorizontalDivider` import and clean up styling logic in `Text.kt`.

…ling APIs.