Theseus Quests

Planned to be the last beta, and it is a big one:

• Added chapter navigation, graph panning/zooming, and a dockable, movable, or hidden minimap.
• Added configurable pinned-quest tracker placement and persistent display preferences, configurable with resourceful config
• Added optional JEI and REI recipe/usage integration.
• Added per-reward claim tracking and lazy loading for chapter data.
• Expanded quest authoring with context menus, grid snapping, chapter management, and local quest-file access.
• Added client-side theming and an editor tutorial.
• Fixed item metadata preservation and several editor layout and navigation issues.