feat: Add VerticalFloatingToolBar component and navigation

This commit introduces the `VerticalFloatingToolBar` component and integrates it into the app's navigation structure.

- **New Route**: Added `VerticalFloatingToolBarRoutes` sealed interface and `ToolbarRoute` object in `AppRoutes.kt` to define the navigation path for the new component.
- **Navigation Graph Integration**:
    - Updated `AppNavigation.kt` to include `onNavigateToVerticalFloatingToolbarRoute` in `HomeScreen` to handle navigation to the `VerticalFloatingToolBarRoutes.ToolbarRoute`.
    - Added `verticalFloatingToolBarNavGraph()` to the main `NavHost` in `AppNavigation.kt`.
- **New NavGraph File**: Created `VerticalFloatingToolbarNavGraph.kt` which defines the navigation entry for `VerticalFloatingToolBarRoutes.ToolbarRoute` and associates it with the `VerticalFloatingToolBar` composable.