chore(android): update app icon assets and adaptive icon configuration

This commit updates the Android app launcher icons, including changes to the adaptive icon configuration and background color.

- **chore(android)**: Updated adaptive icon XML files to use `ic_launcher_foreground` for the monochrome layer.
- **chore(android)**: Updated `ic_launcher_background` color to a lighter shade (`#1C1B1B`).
- **chore(android)**: Updated launcher icon, foreground, and round icon `.webp` assets across all density buckets (hdpi to xxxhdpi).
- **chore(android)**: Updated Play Store icon and main logo image assets.

Author: rainxchzed

composeApp/src/androidMain/ic_launcher-playstore.png

@@ -2,5 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
-    <monochrome android:drawable="@drawable/ic_launcher_monochrome"/>
+    <monochrome android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

composeApp/src/androidMain/res/drawable/ic_logo.png

@@ -2,5 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
-    <monochrome android:drawable="@drawable/ic_launcher_monochrome"/>
+    <monochrome android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>