* Fixed a bug which didn't take sort direction when not changing sort field
* Added foundation for Bookmark refactor
* Code broken, need to take a break. Issue is Getting bookmark image needs authentication but UI doesn't send.
* Implemented the ability to send bookmarked files to the web. Implemented ability to clear bookmarks on disk on a re-occuring basis.
* Updated the bookmark design to have it's own card that is self contained. View bookmarks modal has been updated to better lay out the cards.
* Refactored download bookmark codes to select files from bookmark directory directly rather than open underlying files.
* Wrote the basic logic to kick start the bookmark migration.
Added Installed Version into the DB to allow us to know more accurately when to run migrations
* Implemented the ability to change the bookmarks directory
* Updated all references to BookmarkDirectory to use setting from the DB.
Updated Server Settings page to use 2 col for some rows.
* Refactored some code to DirectoryService (hasWriteAccess) and fixed up some unit tests from a previous PR.
* Treat folders that start with ._ as blacklisted.
* Implemented Reset User preferences. Some extra code to prep for the migration.
* Implemented a migration for existing bookmarks to using new filesystem based bookmarks
* Refactored all files to have Interfaces within the same file. Started moving over to file-scoped namespaces.
* Refactored common methods for getting underlying file's cover, pages, and extracting into 1 interface.
* More refactoring around removing dependence on explicit filetype testing for getting information.
* Code is buildable, tests are broken. Huge refactor (not completed) which makes most of DirectoryService testable with a mock filesystem (and thus the services that utilize it).
* Finished porting DirectoryService to use mocked filesystem implementation.
* Added a null check
* Added a null check
* Finished all unit tests for DirectoryService.
* Some misc cleanup on the code
* Fixed up some bugs from refactoring scan loop.
* Implemented CleanupService testing and refactored more of DirectoryService to be non-static.
Fixed a bug where cover file cleanup wasn't properly finding files due to a regex bug.
* Fixed an issue in CleanupBackup() where we weren't properly selecting database files older than 30 days. Finished CleanupService Tests.
* Refactored Flatten and RemoveNonImages to directory service to allow CacheService to be testable.
* Finally have CacheService tested. Rewrote GetCachedPagePath() to be much more straightforward & performant.
* Updated DefaultParserTests.cs to contain all existing tests and follow new test layout format.
* All tests fixed up
