v1.1 Release

• Jern now prompts you to rename your .k file on startup, and will create one if one isn't found.
• You can now navigate between different entries using Alt+PgUp and Alt+PgDn.
• Jern will ask you if you'd like to save your changes before quitting or moving to another entry.
• Depreciated macOS support (no one downloaded it lol)

Thank you to everyone who tried out Jern so far, I've received some awesome feedback from everyone and I'm happy to get these changes in! Let me me know if you run into any issues or errors.