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/values-mcc310-mnc160-gl/strings.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- 
+/*
+** Copyright 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 my 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.
+*/
+ -->
+
+<!--  These resources are around just to allow their values to be customized
+     for different hardware and product builds.  -->
+
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+  <string-array name="wfcOperatorErrorAlertMessages">
+    <item msgid="3017901214286816293">"Para facer chamadas e enviar mensaxes a través da wifi, primeiro pídelle ao teu operador que configure este servizo. A continuación, activa de novo as chamadas por wifi en Configuración."</item>
+  </string-array>
+  <string-array name="wfcOperatorErrorNotificationMessages">
+    <item msgid="7068215934335709161">"Rexístrate co teu operador"</item>
+  </string-array>
+    <string name="wfcSpnFormat" msgid="2031160810542298336">"Chamadas por wifi de %s"</string>
+</resources>