Change InputManager trigger behavior to subset triggering

Previously, InputManager triggered an action only for exact matching. If 'CTRL' was configured, the action would be released as soon as 'CTRL + R' was pressed.
The behavior is changed now that the action stays active as long as its configured combination is keeping pressed (ignoring any extra keys/buttons).

ref T595

src/blackcore/inputmanager.h

@@ -140,6 +140,7 @@ namespace BlackCore
 
         QMap<QString, QPixmap> m_availableActions;
         QHash<BlackMisc::Input::CHotkeyCombination, QString> m_configuredActions;
+        QSet<QString> m_activeActions;
         QVector<BindInfo> m_boundActions;
 
         bool m_actionRelayingEnabled = false;