Multiple changes

[MrBurtyyy]

This pull request contains multiple changes, including bux fixes and new features:

• [ENHANCEMENT] Rewrite the Profile class and how it saves it to the database (future proofing the application)
• [FEATURE] Add "Encode to String" and "Decode to String" functionality which allows users to quickly share waypoints without having to send files.
• [BUG FIX] The waypoint type radio buttons will now update when selecting different waypoint types in the listbox view.