v2.4.0

What's new

Course ordering

• Owners can drag courses into a custom order via the "Custom order" sort option
• Order is saved automatically on drop
• New position column on courses table

Bulk delete

• Owners see checkboxes on each file row in course pages
• Sticky action bar appears when files are selected with a count and delete button
• Select-all checkbox in the action bar

UI

• Removed Exit owner button — session persists for the browser session naturally
• Removed redundant "Uploaded the wrong file?" link — trash icon handles it
• Switched font to Inter