TTSManager: Fix modality of voice TTS settings dialog

The voiceTTS settings activity had a wrong modality option when opened.
Change intent flags from FLAG_ACTIIVITY_NEW_TASK to FLAG_ACTIVITY_NO_HISTORY.

This will change the behaviour like this:

- open activity on top of the TTSManager activity
- close activity when navigating back
- close activity when resuming by navigating back to Símarómur from another
  app / activity

This fixes #143

Signed-off-by: Daniel Schnell <[email protected]>

Author: lumpidu

app/src/main/java/com/grammatek/simaromur/TTSManager.java

@@ -190,7 +190,7 @@ public void onDestroy() {
     private void openTtsSettings() {
         Intent intent = new Intent();
         intent.setAction("com.android.settings.TTS_SETTINGS");
-        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
         startActivity(intent);
     }