fix(initDefaultMainKeysIfMissing): log messages

Now the log messages correctly reflect the key binding configuration:

* historyForward logs historykey + " RIGHT".
* historyBack logs historykey + " LEFT".

src/main/java/de/danielluedecke/zettelkasten/settings/AcceleratorKeys.java

@@ -398,7 +398,7 @@ void initDefaultMainKeysIfMissing() {
 			acceleratorKeysMain.getRootElement().addContent(acckey);
 
 			// Log the key binding configuration
-	        Constants.zknlogger.info("Key binding set for historyForward: " + historykey + " LEFT");
+	        Constants.zknlogger.info("Key binding set for historyForward: " + historykey + " RIGHT");
 
 		}