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_close.xml

@@ -0,0 +1,24 @@
+<!--
+Copyright (C) 2016 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="24.0dp"
+        android:height="24.0dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M18.3,5.71a0.996,0.996 0,0 0,-1.41 0L12,10.59 7.11,5.7A0.996,0.996 0,1 0,5.7 7.11L10.59,12 5.7,16.89a0.996,0.996 0,1 0,1.41 1.41L12,13.41l4.89,4.89a0.996,0.996 0,1 0,1.41 -1.41L13.41,12l4.89,-4.89c0.38,-0.38 0.38,-1.02 0,-1.4z"
+        android:fillColor="#FF000000"/>
+</vector>