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.Tests/Helpers/TagHelperTests.cs

@@ -116,4 +116,25 @@ public class TagHelperTests
 
         Assert.Equal(1, tagRemoved.Count);
     }
+
+    [Fact]
+    public void RemoveEveryoneIfNothingInRemoveAllExcept()
+    {
+        var existingTags = new List<Tag>
+        {
+            DbFactory.Tag("Action", false),
+            DbFactory.Tag("Sci-fi", false),
+        };
+
+        var peopleFromChapters = new List<Tag>();
+
+        var tagRemoved = new List<Tag>();
+        TagHelper.KeepOnlySameTagBetweenLists(existingTags,
+            peopleFromChapters, tag =>
+            {
+                tagRemoved.Add(tag);
+            });
+
+        Assert.Equal(2, tagRemoved.Count);
+    }
 }