v2.4.0 - 2023-10-08

Chapter-based markers, basic sorting, and under-the-hood improvements

Changelog

Chapter-based editing - if a movie/episode has chapter data available, allow adding/editing markers based on those (e080a1c). Addresses #12.
- Also integrated into the bulk add dialog (9ffe190)
Add sorting options to the filter dialog - sort alphabetically (default) or by various marker counts (625cd73 and 5443420)
Filter to specific marker types in the bulk delete dialog (be9bb53)
Add 'Overwrite' resolution option to bulk add (0a31f1b).
Italicize the 'Credits' text in the marker table if the marker is final (4e793b4)

Remove hack that commandeered an unused column in the Plex database, as the information is availabe in the backup database (93ab294)
Fix a display issue after bulk restoring markers (13fb262)
Re-allow copying of timestamp inputs (8b9aef9)

Removed pureMode, as it's no longer applicable after 93ab294
Removed backupActions, as the backup manager is now always enabled (93ab294)