Mapart Helper

This update will remove all your preset \*\*names\*\*. It will not remove any other data, but any presets you already have will become "Unnamed" and should be renamed manually. It's done to make presets as stable and easy to share as possible. ### Changes and new features - Mapart Painter: a simple image editor to edit your image or to paint a completely new one; - Fullscreen image view mode: scroll, move and look at every pixel up close; - Added error propagation weights setting for error diffusion dithering; - Updated Presets Editor screen and rewritten palette presets handling to improve reliability of presets editing and transferring; - Rewritten dropdown overlays and scrollable layouts to make them more stable and clean; ### Fixes and minor changes - Added config option to allow adding auxiliary blocks at the platform layer to the schematic; - Added configurable maximum value to mapart size fields; - All integer input fields got maximum value limit and mouse scrolling behavior; - Replace almost all emoji-buttons with icon-buttons - By default, palette will be generating only from vanilla (\`minecraft:\*\`) blocks. This can be changed in the config; - Added potent sulfur to the default generated palette (it was not added automatically because it is block entity);