TESTCORE: only load the test-keybindings if the appname differs

each test app can provide its own application name - and thus would also load a custom keybinding file

data/testcore/test-keybindings.cfg

@@ -1,5 +1,4 @@
 # overrides the keybindings from the shared module
-ctrl+tab toggleconsole
 w +move_forward
 a +move_left
 s +move_backward

src/modules/testcore/TestApp.cpp

@@ -56,7 +56,10 @@ core::AppState TestApp::onConstruct() {
 }
 
 core::AppState TestApp::onInit() {
-	_keybindingHandler.load("test-keybindings.cfg");
+	// apps may provide their own keybindings
+	if (_appname != "test") {
+		_keybindingHandler.load("test-keybindings.cfg");
+	}
 	const core::AppState state = Super::onInit();
 	if (state != core::AppState::Running) {
 		return state;