Simple toggle for invisible item frames

Shift-right-click to turn an item frame invisible/visible

Requires invisibleframes.toggleframes permission

there are currently 2 configuration options, defaults are lock-frame: true and toggle-empty: false

lock-frame sets the item frames to locked when they are invisible, stopping the items from being able to be knocked out, and having a random invisible item frame you cannot see

toggle-empty allows the item frame to be toggled when empty. This is off by default so as not to have random invisible frames everywhere

Roadmap:

• Reload command
• Different options for how to toggle

If you use a Purpur server, check out PurpurExtras for similar small QOL game improvements! (That's what this code was originally written for, lol)