Add configurable shortcuts for drawing tools

src/core/controller.cpp

@@ -46,6 +46,9 @@
 Controller::Controller() : m_captureWindow(nullptr) {
     qApp->setQuitOnLastWindowClosed(false);
 
+    // set default shortcusts if not set yet
+    ConfigHandler().setShortcutsDefault();
+
     // init tray icon
 #if defined(Q_OS_LINUX) || defined(Q_OS_UNIX)
     if (!ConfigHandler().disabledTrayIconValue()) {