I just noticed that a lot of the log events added in MDL-73337 have the wrong edulevel. E.g. slot_mark_updated should not be LEVEL_PARTICIPATING. It should be LEVEL_TEACHING

This issue is to review them all, and fix as required. Specifically the changes made are:

• attempt_manual_grading_completed -> LEVEL_TEACHING
• attempt_reviewed -> LEVEL_PARTICIPATING – Students review their own attempts, as well as teachers reviewing.
• attempt_summary_viewed -> LEVEL_PARTICIPATING
• page_break_created -> LEVEL_TEACHING
• page_break_deleted -> LEVEL_TEACHING
• quiz_grade_updated -> LEVEL_TEACHING
• quiz_repaginated -> LEVEL_TEACHING
• section_break_created -> LEVEL_TEACHING
• section_break_deleted -> LEVEL_TEACHING
• section_shuffle_updated -> LEVEL_TEACHING
• section_title_updated -> LEVEL_TEACHING
• slot_created -> LEVEL_TEACHING
• slot_deleted -> LEVEL_TEACHING
• slot_displaynumber_updated -> LEVEL_TEACHING
• slot_mark_updated -> LEVEL_TEACHING
• slot_moved -> LEVEL_TEACHING
• slot_requireprevious_updated -> LEVEL_TEACHING

Some crud values were also wrong. Also fixed.