Need to implement a better design

[Geez14]

The current design of the app is:

1. The application is fully coupled with the FastNoteApp.java,
2. The UI part "com.geez14.fastnote.FastNoteUI.java

looks garbage, it doesn't have any proper scalable structure.
I was thinking of singleton design pattern for the UI, we can update the UI properties through update method.

3. There is no configuration for the application, and the application doesn't have any configuration to save the current configuration.
4. Skeleton for the whole application is messed