Android: Force an AppCompat theme in the analytics AlertDialog

This fixes a crash on ATV devices, because the the AlertDialog is
from the appcompat class, but the theme derived from the parent
view on ATV devices isn't from AppCompat.

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/Analytics.java

@@ -44,7 +44,7 @@ public class Analytics
     sPrefsEditor.putBoolean(analyticsAsked, true);
     sPrefsEditor.apply();
 
-    new AlertDialog.Builder(context)
+    new AlertDialog.Builder(context, R.style.Theme_AppCompat_Dialog_Alert)
             .setTitle(context.getString(R.string.analytics))
             .setMessage(context.getString(R.string.analytics_desc))
             .setPositiveButton(R.string.yes, (dialogInterface, i) ->