Fix MC-249973 in 1.19

This mod fixes MC-249973 in 1.19.

1.19's game load time is significantly slower than in 1.18.2 or earlier due to the resource loader's change. This was fixed in 1.19.1 but for those who want 1.19.0, this mod fixes the bug to make the game start much faster when there are many resource packs selected.