Update application icons and splash screen assets

- Replace `ic_logo` with `app_icon.png` and update `ic_splash.xml` to use the new resource with an increased inset of 48dp.
- Update adaptive icon configurations (`ic_launcher.xml` and `ic_launcher_round.xml`) to use the foreground asset for the monochrome layer.
- Adjust `ic_launcher_background` color to a darker hex value (#101010).
- Refresh launcher mipmap assets (foreground, round, and standard) across all densities.
- Update the Play Store launcher icon and remove the obsolete `ic_logo.png` file.

Author: rainxchzed

composeApp/src/androidMain/ic_launcher-playstore.png

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <inset xmlns:android="http://schemas.android.com/apk/res/android"
-    android:drawable="@drawable/ic_logo"
-    android:inset="32dp"
+    android:drawable="@drawable/app_icon"
+    android:inset="48dp"
     />

composeApp/src/androidMain/res/drawable/app_icon.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>