chore: update app name and icon

android/AndroidManifest.xml

 <?xml version="1.0"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="io.qt.qtdesignviewer"
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="io.qt.qtuiviewer"
     android:installLocation="auto" android:versionCode="14" android:versionName="1.2">
     <!-- %%INSERT_PERMISSIONS -->
     <!-- %%INSERT_FEATURES -->
@@ -7,9 +7,12 @@
         android:normalScreens="true" android:smallScreens="true" />
     <application android:name="org.qtproject.qt.android.bindings.QtApplication"
         android:extractNativeLibs="true" android:hardwareAccelerated="true"
-        android:label="Qt Design Viewer" android:requestLegacyExternalStorage="true"
+        android:label="Qt UI Viewer" android:requestLegacyExternalStorage="true"
         android:allowNativeHeapPointerTagging="false" android:icon="@mipmap/app_icon">
-        <activity android:name="org.qtproject.qt.android.bindings.QtActivity" android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density" android:label="Qt Design Viewer" android:launchMode="singleTop" android:screenOrientation="unspecified" android:exported="true">
+        <activity android:name="org.qtproject.qt.android.bindings.QtActivity"
+            android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density"
+            android:label="Qt UI Viewer" android:launchMode="singleTop"
+            android:screenOrientation="unspecified" android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>