Small changes and bug fixes

Students of population > Progress tab

• Semester enrollments are now shown in one column per year, used to be fall and spring separately. The new column supports sorting

Filters

• Fixed admission type filter bug: Disabling it from the 'x' in the field caused 0 students to be shown
• Removed age filter from some user groups

Age distribution

• Removed the ability to expand age groups from some user groups

Miscellaneous

• Renamed admission type 'Koepisteet' to 'Valintakoe' everywhere
• Internal code fixes: React key warnings