Adding auto-update feature to this app

[sonikkk-526]

I wrote a java class that checks for updates using this repo (Issues: #2), but I am not sure whether this is a good solution.

On the other hand, I am still figuring out how to create a separate installer that checks for an update at start-up and updates the actual program if needed.

Kindly advise if you have any ideas with thanks. 😃

[sonikkk-526]

I am also thinking about whether this is a good solution to have the updater check for the software update.

Then, after the software is loaded, have the software check for the updater update.