Misc Bugfixes (#1378)

* Fixed an issue where sometimes when loading the next page, the pagination area wouldn't be properly setup due to a missed rendering cycle

* Refactored BookController to thin it out and refactor some of the functions to apply IOC. Added some split query statements on a few queries.

* Added Split Query to many queries

* Added a visual indicator for loading state of PDF. Will spruce up css later.

* Added back in logic

* Fixed flash of white when refreshing browser

* Hooked in a loading progress bar for the pdf reader

* Close the pdf reader when pressing ESC

API/Data/Repositories/PersonRepository.cs

@@ -54,6 +54,7 @@ public class PersonRepository : IPersonRepository
             .Include(p => p.SeriesMetadatas)
             .Include(p => p.ChapterMetadatas)
             .Where(p => p.SeriesMetadatas.Count == 0 && p.ChapterMetadatas.Count == 0)
+            .AsSplitQuery()
             .ToListAsync();
 
         _context.Person.RemoveRange(peopleWithNoConnections);
@@ -69,6 +70,7 @@ public class PersonRepository : IPersonRepository
             .Distinct()
             .OrderBy(p => p.Name)
             .AsNoTracking()
+            .AsSplitQuery()
             .ProjectTo<PersonDto>(_mapper.ConfigurationProvider)
             .ToListAsync();
     }