misc stuff to avoid scan loop (#1389)

* Implemented a workaround for nginx users with BlockCommonExploits enabled, which would interfere with book image escaping done by Kavita when images had ../ in their path.

* Added back to top support on all pages but those that untilize virtual scrolling without a parent scroll.

* Hide jumpbar on pages where there is no scroll

* Refactored jumbar code into a dedicated service

* Stash some jumpkey resume code as I can't get it working with the virtual scroller.

* Don't allow non-admins to see File locations on card detail drawer.

* Some cleanup on GetServerInfo

* When an error occurs in register, delete the user on exception.

* Fixed a NPE in Stat collection for brand new users

* When we catch an exception on registering a new user, delete the user as rolling back doesn't do anything.

* Don't close typeahead when we are selecting options from it

* Added shortcut key H to open shortcut modal on manga reader

* When processing progress updates on cards, for volumes, properly find the chapter to update pages read.

* Hide cover image on reading list if it's not set and fixed a missing closing div tag

* Hide collection poster when nothing is set on collection detail

* Small fix around updating state

* Sped up the bookmark image call by removing one DB call

* Fixed broken test from change in bookmark code

* Fixed an oversight where if there is no tag in ComicInfo after a chapter was updated with People or Genres, then the People/Genres would never be removed.

* Added test with TagHelper

* Fixed a bug where 2 clear buttons would show on search bar due to browser injecting their own. Search bar wont show clear button until text is typed.

* Fixed a bug where InstallID wasn't being selected correctly in converter

API/DTOs/CollectionTags/CollectionTagDto.cs

@@ -6,6 +6,7 @@
         public string Title { get; set; }
         public string Summary { get; set; }
         public bool Promoted { get; set; }
+        public string CoverImage { get; set; }
         public bool CoverImageLocked { get; set; }
     }
 }

API/DTOs/Settings/ServerSettingDTO.cs

@@ -39,6 +39,10 @@ namespace API.DTOs.Settings
         /// <remarks>If null or empty string, will default back to default install setting aka <see cref="EmailService.DefaultApiUrl"/></remarks>
         public string EmailServiceUrl { get; set; }
         public string InstallVersion { get; set; }
+        /// <summary>
+        /// Represents a unique Id to this Kavita installation. Only used in Stats to identify unique installs.
+        /// </summary>
+        public string InstallId { get; set; }
 
         public bool ConvertBookmarkToWebP { get; set; }
         /// <summary>