[Compatibility Issue] Usage of legacy tags

[rlnt]

What is the compatibility issue
Clutter is still using legacy Fabric tags for 1.21.1. You should adapt to the new tag format introduced in FabricMC/fabric-api#3310 and FabricMC/fabric-api#4161.

Since you are using legacy tags, the mod causes a lot of compatibility issues because other mods use the new tag format already. Mods like Almost Unified can't properly transform recipes, for example.

*Additional info
The new system uses directory-based tags within the c namespace. Instead of something like c:raw_silvers, you need to use c:raw_materials/silver.