Checking if you want me to issue PR for new features I have in a fork

[doodadlabs]

Hi,
At the request of mappers on our server I made some quality of life updates to MapartCraft. If these look interesting to you I can issue a PR so you can inspect and integrate. I'm happy to cherry pick specific features as well, just let me know which. And... no worries if you don't want the updates.

Improvements are live here (not working in Firefox): https://doodadlabs.github.io/mapartcraft/

1. Get materials list for specific chunk(s) in addition to whole project. (Configurable)
2. View online: Thicker chunk border color (Not configurable)
3. View online: Removed the block shading effect. The specific issue is that the carpet color is hard to determine because the shading will make carpets of one color look like another. (Not configurable)
4. View online: Clicking on a chunk displays its row/column number. The user can use this to "focus" on desired chunks - it grays out all chunks that are not on the focus list. (Configurable)