Revamped some complex queries, added favourites to home

- Removed old view system and started use of new query classes instead.
- Finished off RelationMultiModelQuery but found it was less efficient
than x-many queries due to the amount of tables being scanned.
Adding now for history but will delete as not used.
- Updated recently viewed to use same query system as popular items
  rather than running and joining x-entities queries.
- Added "Most Viewed Faviourites" listing to homepages.

app/Http/Controllers/HomeController.php

@@ -2,11 +2,12 @@
 
 use Activity;
 use BookStack\Entities\Models\Book;
+use BookStack\Entities\Queries\RecentlyViewed;
+use BookStack\Entities\Queries\TopFavourites;
 use BookStack\Entities\Tools\PageContent;
 use BookStack\Entities\Models\Page;
 use BookStack\Entities\Repos\BookRepo;
 use BookStack\Entities\Repos\BookshelfRepo;
-use Illuminate\Http\Response;
 use Views;
 
 class HomeController extends Controller
@@ -32,12 +33,13 @@ class HomeController extends Controller
 
         $recentFactor = count($draftPages) > 0 ? 0.5 : 1;
         $recents = $this->isSignedIn() ?
-              Views::getUserRecentlyViewed(12*$recentFactor, 1)
+            (new RecentlyViewed)->run(12*$recentFactor, 1)
             : Book::visible()->orderBy('created_at', 'desc')->take(12 * $recentFactor)->get();
+        $faviourites = (new TopFavourites)->run(6, 1);
         $recentlyUpdatedPages = Page::visible()->with('book')
             ->where('draft', false)
             ->orderBy('updated_at', 'desc')
-            ->take(12)
+            ->take($faviourites->count() > 0 ? 6 : 12)
             ->get();
 
         $homepageOptions = ['default', 'books', 'bookshelves', 'page'];
@@ -51,6 +53,7 @@ class HomeController extends Controller
             'recents' => $recents,
             'recentlyUpdatedPages' => $recentlyUpdatedPages,
             'draftPages' => $draftPages,
+            'favourites' => $faviourites,
         ];
 
         // Add required list ordering & sorting for books & shelves views.