feat(nav)!: Redesign bottom navigation with liquid glass effect

This commit completely overhauls the bottom navigation bar, replacing the previous simple icon button implementation with a new "liquid glass" design. The new design features a dynamic, animated indicator that slides and resizes, along with subtle glass-like visual effects that adapt to the current theme (light/dark).

This is a breaking change as it fundamentally alters the navigation structure and appearance. The previous navigation items (Favourites, Starred) have been removed from the main bar and replaced with a consolidated "Profile" destination.

- **feat(nav)!**: Implemented a new liquid glass bottom navigation bar.
  - The bar now features a sliding indicator with spring animations for position and size.
  - Added visual effects like frost, refraction, and specular highlights that change based on the light or dark theme.
  - Tab items now include both an icon and a text label, which animates in when selected.
  - Icons animate with a subtle bounce and vertical offset when selected.
- **feat(nav)!**: Redefined the bottom navigation destinations to Home, Search, Apps, and Profile.
  - Removed "Favourites" and "Starred" from the bottom bar.
  - The "Settings" destination is now labeled as "Profile" and uses a new icon.
- **refactor(nav)**: Created a new reusable `LiquidGlassTabItem` composable for the navigation items.
- **chore(strings)**: Added new string resources for the updated navigation titles (Home, Search, Apps, Profile).

Author: rainxchzed

composeApp/src/commonMain/composeResources/values/strings.xml

@@ -8,6 +8,11 @@
     <string name="navigate_back">Navigate back</string>
     <string name="check_for_updates">Check for updates</string>
 
+    <string name="bottom_nav_home_title">Home</string>
+    <string name="bottom_nav_search_title">Search</string>
+    <string name="bottom_nav_apps_title">Apps</string>
+    <string name="bottom_nav_profile_title">Profile</string>
+
     <!-- Apps feature - Errors / messages -->
     <string name="cannot_launch">Cannot launch %1$s</string>
     <string name="failed_to_open">Failed to open %1$s</string>