build: Update app icons and manifest

- Added new launcher icons
- Added maskable icons
- Updated AndroidManifest
- Updated web manifest

Author: fulleni

android/app/src/main/AndroidManifest.xml

@@ -2,7 +2,7 @@
     <application
         android:label="ht_main"
         android:name="${applicationName}"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/launcher_icon">
         <activity
             android:name=".MainActivity"
             android:exported="true"