Resolve "Absence dialog doesn't work"

Closes #327 (closed)

changed milestone to /AlekSIS%"[NLnet #7] Fix bugs, improve usability, and implement additional features based on feedback reports by pilot schools in timetable management and class register"

added part::frontend source::customer::kath type::bug workflow::current-todo labels

assigned to @yuha

added 17 commits

• 18488a52...d93b2f6f - 17 commits from branch master

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added 1 commit

• 07d67ba7 - Fix extending absences/entering of long-term absences

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marked this merge request as ready

assigned to @hansegucker and unassigned @yuha

this will also fix #324 (closed)

added 1 commit

• b1dfc899 - Also show absence dialog fab button on documentation overview page

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added 1 commit

• c92b8ef8 - Also show absence dialog fab button on documentation overview page

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mentioned in commit 28ec5cbc

merged