What does this MR do?
It skips loading the js translation file if the current language is English and it also removes the loaded translations from the global object to save memory.
Why was this MR needed?
Does this MR meet the acceptance criteria?
Has been reviewed by Frontend
Conform by the merge request performance guides
Conform by the style guides
Squashed related commits together
What are the relevant issue numbers?
Closes #38845 (closed)