Added chapter search

Migrated book search to vue-based system.
Updated old tag seached.
Made chapter page layout widths same as book page.
Closes #344

app/Repos/EntityRepo.php

@@ -569,7 +569,7 @@ class EntityRepo
 
         $draftPage->save();
         $this->savePageRevision($draftPage, trans('entities.pages_initial_revision'));
-
+        $this->searchService->indexEntity($draftPage);
         return $draftPage;
     }