v5.2.4

• Bugfix: Apply Moodle filters to the Zoom topic and description #615 (thanks @behanw)
• Bugfix: Temporarily use string 'null' when recording_type is null #620 (thanks @smangancap)
• Accessibility: Migrate Bootstrap .label to .badge (Bootstrap 3 -> 4/5) #608 (thanks @sgrandh3)
• Accessibility: Add table headers and IDs to activity details sections and rows #612 (thanks @a-kempka)
• Code quality: Check Moodle 4.4 and PHP 8.3 #611