Rebuild Noo as a full Nextcloud client: auth, media, and Material You UI

Replaces the starter template with Login Flow v2 auth, WebDAV-backed
Files/Photos/Activity tabs, a swipeable media viewer with PDF/text/video
preview, Material You dynamic theming, a frosted-glass floating nav bar,
and a rebranded app icon/identity (com.example -> family.nasa).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

android/app/src/main/AndroidManifest.xml

@@ -1,8 +1,11 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET"/>
     <application
-        android:label="nextcloud_client"
+        android:label="Noo"
         android:name="${applicationName}"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        android:networkSecurityConfig="@xml/network_security_config"
+        android:usesCleartextTraffic="true">
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -41,5 +44,16 @@
             <action android:name="android.intent.action.PROCESS_TEXT"/>
             <data android:mimeType="text/plain"/>
         </intent>
+        <!-- Needed so url_launcher can find a browser for Nextcloud Login Flow v2. -->
+        <intent>
+            <action android:name="android.intent.action.VIEW"/>
+            <category android:name="android.intent.category.BROWSABLE"/>
+            <data android:scheme="https"/>
+        </intent>
+        <!-- Needed so open_file can find apps to open downloaded files. -->
+        <intent>
+            <action android:name="android.intent.action.VIEW"/>
+            <data android:mimeType="*/*"/>
+        </intent>
     </queries>
 </manifest>