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/templates/java_tests_file.template

@@ -0,0 +1,21 @@
+package PACKAGE;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+/**
+ * This is a simple framework for a test of an Application.  See
+ * {@link android.test.ApplicationTestCase ApplicationTestCase} for more information on
+ * how to write and extend Application tests.
+ * <p/>
+ * To run this test, you can type:
+ * adb shell am instrument -w \
+ * -e class ACTIVITY_FQ_NAME \
+ * PACKAGE.tests/android.test.InstrumentationTestRunner
+ */
+public class ACTIVITY_CLASS_NAME extends ActivityInstrumentationTestCase2<ACTIVITY_TESTED_CLASS_NAME> {
+
+    public ACTIVITY_CLASS_NAME() {
+        super("PACKAGE", ACTIVITY_TESTED_CLASS_NAME.class);
+    }
+
+}