fix(mpa): FA active tab no longer highlighted when entering fullscreen
fix(mpa): FA active tab no longer highlighted when entering fullscreen

This was caused by wrongly placed class

unipept/unipept,bmesuere/uni-test,bmesuere/uni-test,unipept/unipept,unipept/unipept,bmesuere/uni-test,bmesuere/uni-test,unipept/unipept,unipept/unipept,bmesuere/uni-test