v1.21.0

[GeckoEidechse]

Features:
Add Winter holiday event models to the lobby (Mods#768)
Rework -vanilla to be a vanilla compatibility mode (Launcher#601)
Add plugin dependency constants (Launcher#458)
Load plugin dependencies from lib folder (Launcher#590)
Add Aegis Rank reset functionality command for Progression (Mods#727)
Mod download UI integration (Launcher#595, Mods#761)

Changes:
Disable more compression methods for minizip (Launcher#602)

Tooling:
Rename Action from Build to Release (#585)
Bump clang format action to 0.16.2 (Launcher#609)
Add clang-format config to pack constructor initializers (Launcher#608)
Treat .gnut files as .nut for syntax highlighting (Mods#770)

Documentation:
Add a doc comment to StringReplace (Mods#748)

Contributors:
@Alystrasz @ASpoonPlaysGames @EM4Volts @GeckoEidechse @Jan200101 @RoyalBlue1 @Zanieon @catornot @uniboi

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This discussion was created from the release v1.21.0.