Added option to close Envoy Linux-like with "Control"+"Q"

client/src/main/java/envoy/client/ui/SceneContext.java

@@ -7,6 +7,7 @@ import java.util.logging.Level;
 import javafx.application.Platform;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.*;
+import javafx.scene.input.*;
 import javafx.stage.Stage;
 
 import envoy.client.data.Settings;
@@ -105,6 +106,17 @@ public final class SceneContext implements EventListener {
 
 			sceneStack.push(scene);
 			stage.setScene(scene);
+
+			// Adding the option to exit Linux-like with "Control" + "Q"
+			scene.getAccelerators()
+				.put(new KeyCodeCombination(KeyCode.Q, KeyCombination.CONTROL_DOWN),
+						() -> {
+							// Presumably no Settings are loaded in the login scene, hence Envoy is closed
+							// directly
+							if (sceneInfo != SceneInfo.LOGIN_SCENE && settings.isHideOnClose()) stage.setIconified(true);
+							else System.exit(0);
+						});
+
 			// The LoginScene is the only scene not intended to be resized
 			// As strange as it seems, this is needed as otherwise the LoginScene won't be
 			// displayed on some OS (...Debian...)

client/src/main/java/envoy/client/ui/Startup.java

@@ -67,7 +67,7 @@ public final class Startup extends Application {
 
 		// Initialize the local database
 		try {
-			File localDBDir = new File(config.getHomeDirectory(), config.getLocalDB().getPath());
+			final var localDBDir = new File(config.getHomeDirectory(), config.getLocalDB().getPath());
 			logger.info("Initializing LocalDB at " + localDBDir);
 			localDB = new LocalDB(localDBDir);
 			localDB.lock();
@@ -99,11 +99,9 @@ public final class Startup extends Application {
 			if (!performHandshake(
 					LoginCredentials.loginWithToken(localDB.getUser().getName(), localDB.getAuthToken(), VERSION, localDB.getLastSync())))
 				sceneContext.load(SceneInfo.LOGIN_SCENE);
-		} else {
-
+		} else 
 			// Load login scene
 			sceneContext.load(SceneInfo.LOGIN_SCENE);
-		}
 	}
 
 	/**
@@ -126,9 +124,7 @@ public final class Startup extends Application {
 				loadChatScene();
 				client.initReceiver(localDB, cacheMap);
 				return true;
-			} else {
-				return false;
-			}
+			} else return false;
 		} catch (IOException | InterruptedException | TimeoutException e) {
 			logger.log(Level.INFO, "Could not connect to server. Entering offline mode...");
 			return attemptOfflineMode(credentials.getIdentifier());