Minimize or Close app after copying OTP

Close #805

app/src/main/java/com/beemdevelopment/aegis/Preferences.java

@@ -355,6 +355,10 @@ public class Preferences {
         return _prefs.getBoolean("pref_copy_on_tap", false);
     }
 
+    public boolean isMinimizeOnCopyEnabled() {
+        return _prefs.getBoolean("pref_minimize_on_copy", false);
+    }
+
     public void setGroupFilter(List<String> groupFilter) {
         JSONArray json = new JSONArray(groupFilter);
         _prefs.edit().putString("pref_group_filter", json.toString()).apply();

app/src/main/java/com/beemdevelopment/aegis/ui/MainActivity.java

@@ -948,6 +948,9 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
             clip.getDescription().setExtras(extras);
         }
         clipboard.setPrimaryClip(clip);
+        if (_prefs.isMinimizeOnCopyEnabled()) {
+            moveTaskToBack(true);
+        }
     }
 
     private class ActionModeCallbacks implements ActionMode.Callback {

app/src/main/res/values/strings.xml

@@ -280,6 +280,8 @@
 
     <string name="pref_highlight_entry_title">Highlight tokens when tapped</string>
     <string name="pref_highlight_entry_summary">Make tokens easier to distinguish from each other by temporarily highlighting them when tapped</string>
+    <string name="pref_minimize_on_copy_title">Minimize on copy</string>
+    <string name="pref_minimize_on_copy_summary">Minimize the app after copying a token</string>
     <string name="pref_copy_on_tap_title">Copy tokens when tapped</string>
     <string name="pref_copy_on_tap_summary">Copy tokens to the clipboard by tapping them</string>
     <string name="pref_pause_entry_title">Freeze tokens when tapped</string>

app/src/main/res/xml/preferences_behavior.xml

@@ -8,6 +8,12 @@
         android:title="@string/pref_focus_search"
         android:summary="@string/pref_focus_search_summary"
         app:iconSpaceReserved="false"/>
+    <androidx.preference.SwitchPreferenceCompat
+        android:defaultValue="false"
+        android:key="pref_minimize_on_copy"
+        android:title="@string/pref_minimize_on_copy_title"
+        android:summary="@string/pref_minimize_on_copy_summary"
+        app:iconSpaceReserved="false"/>
     <androidx.preference.SwitchPreferenceCompat
         android:defaultValue="false"
         android:key="pref_copy_on_tap"