v1.4 Custom Trigger Update

It was relatively easy to improve the project by allowing users to add/edit notification triggers, but it adds so much to the program!

- The project is now open source! Anyone can check the code and contribute to the project!

- Renamed to UEFN Notifier since it can notify you about more than just push changes.
- Added Trigger Manager which allows you to add and edit notification triggers as well as sounds. You can fully change everything about the default ones.
- Added open settings file option so you can share your configuration easily.
- Added triggers for HLOD building.
- Made notification not show up if program is launched on startup since that could become annoying over time.
- Fixed issue where Success notification played early, before Fortnite had loaded fully.
- Maybe fixed issue where command prompt stays on screen when launching on startup.
- Fixed Exit sometimes not working.