fix: Add build script and fix manifest

- Add build-apk.sh for easy compilation
- Simplify AndroidManifest.xml
- Fix themes.xml to use basic Android themes
- Enable BuildConfig
- Add okhttp-dnsoverhttps dependency

android-sdk/platforms/android-34/data/res/drawable/ic_camera.xml

@@ -0,0 +1,24 @@
+<!--
+Copyright (C) 2018 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="16dp"
+        android:height="16dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M20,5h-3.17L15,3H9L7.17,5H4C2.9,5 2,5.9 2,7v12c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V7C22,5.9 21.1,5 20,5zM20,19H4V7h16V19zM12,9c-2.21,0 -4,1.79 -4,4c0,2.21 1.79,4 4,4s4,-1.79 4,-4C16,10.79 14.21,9 12,9z"/>
+</vector>