Book Reader Issues (#906)

* Refactored the Font Escaping Regex with new unit tests.

* Fonts are now properly escaped, somehow a regression was introduced.

* Refactored most of the book page loading for the reader into the service.

* Fixed a bug where going into fullscreen in non dark mode will cause the background of the reader to go black. Fixed a rendering issue with margin left/right screwing html up. Fixed an issue where line-height: 100% would break book's css, now we remove the styles if they are non-valuable.

* Changed how I fixed the black mode in fullscreen

* Fixed an issue where anchors wouldn't be colored blue in white mode

* Fixed a bug in the code that checks if a filename is a cover where it would choose "backcover" as a cover, despite it not being a valid case.

* Validate if ReleaseYear is a valid year and if not, set it to 0 to disable it.

* Fixed an issue where some large images could blow out the screen when reading on mobile. Now images will force to be max of width of browser

* Put my hack back in for fullscreen putting background color to black

* Change forwarded headers from All to explicit names

* Fixed an issue where Scheme was not https when it should have been. Now the browser will handle which scheme to request.

* Cleaned up the user preferences to stack multiple controls onto one row

* Fixed fullscreen scroll issue with progress, but now sticky top is missing.

* Corrected the element on which we fullscreen

API/Startup.cs

@@ -209,7 +209,7 @@ namespace API
 
             app.UseForwardedHeaders(new ForwardedHeadersOptions
             {
-                ForwardedHeaders = ForwardedHeaders.All
+                ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto | ForwardedHeaders.XForwardedHost
             });
 
             app.UseRouting();