Discontinue debug variants

Signed-off-by: Muntashir Al-Islam <muntashirakon@riseup.net>

Author: MuntashirAkon

app/src/main/java/io/github/muntashirakon/AppManager/main/MainActivity.java

@@ -543,6 +543,14 @@ protected void onPause() {
     }
 
     private void displayChangelogIfRequired() {
+        if (BuildConfig.DEBUG) {
+            new ScrollableDialogBuilder(this)
+                    .setTitle("Debug Variants Discontinued")
+                    .setMessage("The official debug builds have been discontinued. Consider migrating to the release builds as this build will stop working 2 months after the release date.")
+                    .setNegativeButton(R.string.ok, null)
+                    .show();
+            return;
+        }
         if (!AppPref.getBoolean(AppPref.PrefKey.PREF_DISPLAY_CHANGELOG_BOOL)) {
             return;
         }