[TCC planning] Frontend is incredibly slow with large amounts of entries

changed milestone to /AlekSIS%"[NLnet #1 (closed)] Fix existing bugs with new timetable"

added part::frontend label

assigned to @yuha

changed title from [TCC planning] Frontend is incredibly slow with large amounts of groups to [TCC planning] Frontend is incredibly slow with large amounts of entries

created branch 49-tcc-planning-frontend-is-incredibly-slow-with-large-amounts-of-groups to address this issue

mentioned in merge request !47

changed milestone to /AlekSIS%"[NLnet #7] Speed up and finish planning feature for lesson distribution"