Custom Waypoints

* Added NeoForge support: 1.20.1, 1.20.4, 1.21.1, 1.21.4, 1.21.5, 1.21.8, 1.21.11, 26.2
* Added Fabric 26.2 support
* Added a visual editor (M by default, or /waypoint editor) with live preview, sliders, a color wheel and the equivalent command to copy
* Added the Displays tab (N by default) to edit or delete the waypoints around you
* Added undo and redo (Ctrl+Z / Ctrl+Y) and a History of the last 8 saved, overwritten or deleted waypoints
* Added reset buttons to the sliders, and Shift to move them in steps of 5
* The editor works as an overlay: you can keep walking while it is open
* Added figures: /waypoint figure, mission markers on the ground with 19 shapes or any text/number
* Figures support negative height (fade downward), in/out animations, follow rotation, pitch and roll (for walls) and width_x / width_z
* Waypoints are now saved per world and per dimension (old waypoints are moved to the first world you join)
* Added {on_view_radius:N} and {/on_view}: text that only shows when you look at the waypoint
* {distance} now shows whole blocks, and {distance_decimal} shows one decimal
* Added optional fade_out and opacity to set, timer, counter and follow
* Added follow_horizontal and follow_vertical rotations
* Timer and counter sounds accept any sound id (vanilla or resource packs) with autocomplete
* Follow targets autocomplete online players
* Follow waypoints are only removed with remove: they hide while the target is not loaded and come back when it loads again
* Fixed pixelate and glitch animations
* Fixed item icons and CustomModelData on some versions