feat: Components v2 (#1760)

* feat: untested prototype impl of v2 components

Likely not to work. Very unpolished and pretty much takes directly from the docs. It's here, though!

* fix: Add missing enums

* fix: Throw error when v2 components are used with incompatible things

* test:  Test command for v2 components

* fix:  Don't hardcode the possible subcomponents of a section

* Add imports

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Co-authored-by: Astrea <[email protected]>

Author: silasary