Bookmark Refactor (#893)

* 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

API/DTOs/Settings/ServerSettingDTO.cs

@@ -1,4 +1,6 @@
-namespace API.DTOs.Settings
+using API.Services;
+
+namespace API.DTOs.Settings
 {
     public class ServerSettingDto
     {
@@ -30,5 +32,10 @@
         /// Base Url for the kavita. Requires restart to take effect.
         /// </summary>
         public string BaseUrl { get; set; }
+        /// <summary>
+        /// Where Bookmarks are stored.
+        /// </summary>
+        /// <remarks>If null or empty string, will default back to default install setting aka <see cref="DirectoryService.BookmarkDirectory"/></remarks>
+        public string BookmarksDirectory { get; set; }
     }
 }