Rolled out HTML editor field and store logic across all target entity types. Cleaned up WYSIWYG input logic and design. Cleaned up some injected classes while there.  | 
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|---|---|---|
| .. | ||
| BaseRepo.php | ||
| BookRepo.php | ||
| BookshelfRepo.php | ||
| ChapterRepo.php | ||
| DeletionRepo.php | ||
| PageRepo.php | ||
| RevisionRepo.php | ||