Add `--list-flavors` and `--list-accents`

[uncenter]

These flags would output a list (in various formats maybe, with -o) of the flavors and accents in Catppuccin. Would simplify something like https://github.com/r58Playz/ctp-devtools/blob/74bccc4f5922a9070013ab951e9d9cbfc678d532/generate.sh#L3-L4.

[isabelroses]

These flags would output a list (in various formats maybe, with -o) of the flavors and accents in Catppuccin. Would simplify something like r58Playz/ctp-devtools@74bccc4/generate.sh#L3-L4.

would using a .tera file not fix this?

[uncenter]

No, Tera matrices are already used in that script linked above. The for loop is needed to symlink other files for every flavor and accent.