MercuryTrade1.0.1.8.1

Hotfixes for the recent big update (check github/reddit):

1. Now "Escape" is not a viable hotkey (lmao), will clear the hotkey instead.
2. Fixed a bug with Item Grid boxes not being removed properly.
3. Fixed a bug with panel resizing not working.
4. Fixed Notification's Upwards Flow Direction option is not working properly.