Resolve "Documentation dialog should be persistent if dirty"

Closes #286 (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 prio::1 type::bug workflow::current-todo labels

added 2 commits

• 0c4f5a63 - Emit dirty event if LessonSummary is dirty
• 6be93261 - Pass dirty to submit buttons and modal dialog

Compare with previous version

marked this merge request as ready

assigned to @hansegucker

merged

mentioned in commit 16c0a314