MatchGroup/Input/Custom for Tetris (#2479)

* MatchGroup/Input/Custom for Tetris

* 1st update

- Module:Flags removed
- Whitespaces

- Empty If Branch idk if this is intended due to being part 1 this is untouch yet

* re-add require later needed

* add error to suppress empty if branch for linter

* Solved space issue

Same as clashroyale/fifa = when https://liquipedia.net/commons/index.php?title=Module:GroupTableLeague/next/downstream&action=edit  was used. It dont tracks results for entries with space

* as per review + shut up anno warning

* kick unused

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