Add app launcher icon and strings resource for TurnosXpress

- Added a new WebP launcher icon for the app in the mipmap-xxxhdpi directory.
- Created a new strings.xml file containing the app name and asset statements for handling URLs.

tx-android/app/src/main/AndroidManifest.xml

@@ -5,14 +5,19 @@
 
     <application
         android:allowBackup="true"
-        android:icon="@drawable/ic_launcher"
-        android:label="TurnosXpress"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/Theme.TurnosXpressTwa">
 
+        <meta-data
+            android:name="asset_statements"
+            android:resource="@string/asset_statements" />
+
         <activity
             android:name="com.google.androidbrowserhelper.trusted.LauncherActivity"
-            android:exported="true">
+            android:exported="true"
+            android:theme="@style/Theme.TurnosXpressTwa">
 
             <meta-data
                 android:name="android.support.customtabs.trusted.DEFAULT_URL"
@@ -34,6 +39,10 @@
                 android:name="android.support.customtabs.trusted.NAVIGATION_BAR_COLOR_DARK"
                 android:resource="@color/twa_navigation_bar_color_dark" />
 
+            <meta-data
+                android:name="android.support.customtabs.trusted.FALLBACK_STRATEGY"
+                android:value="customtabs" />
+
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -48,6 +57,11 @@
                     android:scheme="https" />
             </intent-filter>
         </activity>
+
+        <activity
+            android:name="com.google.androidbrowserhelper.trusted.ManageDataLauncherActivity"
+            android:exported="false"
+            android:theme="@style/Theme.TurnosXpressTwa" />
     </application>
 
 </manifest>