Fixed chapter fetching during joint permission building

Somehow I accidentally deleted previous line 143 in this commit:
3839bf6bf11ac6b4d19c2ae8f62a314a2c164251
which would then break permission generation for content related to, or
containing, chapters in the recycle bin.
Found via user report (subz) & debugging in discord.

app/Auth/Permissions/JointPermissionBuilder.php

@@ -140,6 +140,7 @@ class JointPermissionBuilder
         return Book::query()->withTrashed()
             ->select(['id', 'owned_by'])->with([
                 'chapters' => function ($query) {
+                    $query->withTrashed()->select(['id', 'owned_by', 'book_id']);
                 },
                 'pages' => function ($query) {
                     $query->withTrashed()->select(['id', 'owned_by', 'book_id', 'chapter_id']);