Add 1.21.10-rc1

Update mod to Minecraft 1.21.8

Finish up PR 866

Removing a few more bits that aren't needed since PR #866 was merged.

Credits

Update to 1.21.6-rc1; lowercasebtw's PR with style changes reverted (#…

…861)

* Update to 25w15a

* Update to 25w16a

* Update to 25w20a (Very Broken)

* Update to latest pre-release & fix issues

* Fix search box title text

* Fix colors

* Require >=1.21.6-pre3 to launch

* Revert code style changes so a squash merge will give a clean diff.

* Revert code style changes
- Update to 1.21.6-rc1 thanks to lowercasebtw

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Co-authored-by: lowercasebtw <jejojora2@gmail.com>

Switch to concurrency-safe map implementations for public maps. (#842)

- Fixed concurrency issue when loading mod metadata

fix: rendering methods for RC1 (#840)

* fix: rendering methods for RC1

* Update check_build.yml

fix check_build.yml

* Update check_build.yml

v4 sertup-java

* Update capture build artifacts version

* Add 1.21.5 to CF versions

* RC2

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Co-authored-by: Prospector <6166773+Prospector@users.noreply.github.com>

- Updated to 1.21.5

Update versions

Update Mod Menu branding

Update mod to Minecraft snapshot 25w06a (#828)

- Updated to 25w06a