add keyLoader to observables

src/main/java/org/cryptomator/common/settings/VaultSettings.java

@@ -101,7 +101,7 @@ public class VaultSettings {
 	}
 
 	Observable[] observables() {
-		return new Observable[]{actionAfterUnlock, autoLockIdleSeconds, autoLockWhenIdle, displayName, maxCleartextFilenameLength, mountFlags, mountPoint, path, revealAfterMount, unlockAfterStartup, usesReadOnlyMode, port, mountService};
+		return new Observable[]{actionAfterUnlock, autoLockIdleSeconds, autoLockWhenIdle, displayName, maxCleartextFilenameLength, mountFlags, mountPoint, path, revealAfterMount, unlockAfterStartup, usesReadOnlyMode, port, mountService, keyLoader};
 	}
 
 	public static VaultSettings withRandomId() {