Gitignore locales folder
Revert "Merge branch 'clean_locales' of github.com:Genshin/GAKUEngine"

This reverts commit 2bfdcd7b8d7990fe94dd4a792b66fd20b52cf22e, reversing
changes made to ee674d4a18f9c0ab6907ffc91df283300aae6153.