Grimoire - Upcoming Trainer Spells in Your Spellbook

Full combat support

- The book now opens and closes in combat: spellbook key, Escape, close button and the micro menu button all work through secure handlers
- Spells stay clickable to cast and the list scrolls normally while fighting
- The list itself freezes during combat (a game engine restriction) and catches up automatically when combat ends
- The spell list is prebuilt on login, so opening the book mid fight is never empty
- The micro menu button keeps its native tooltip, highlight and pressed look
- Added book open and close sounds, consistent for every way of toggling
- Fixed Lua errors and a stuck window when toggling the book in combat