Feature/plugin v2 (#284)

* Add "title_title" to slim JSON

* WIP

* WIP

* WIP

* WIP

* Add plugin subscription types

* Revert "Subscription manager"

This reverts commit a612500b0f.

* Use auto overflow tables

cherry-picked from a612500b0f

* Add endpoint for plugin subscription

* WIP

* WIP

* Simplify subscription JSON parsing

* Remove MangaDex files that are no longer needed

* Fix linter

* Refactor date filtering and use native date picker

* Delete unnecessary raise for debugging

* Subscription management API endpoints

* Store manga ID with subscriptions

* Add subscription manager page (WIP)

* Finish subscription manager page

* WIP

* Finish plugin updater

* Base64 encode chapter IDs

* Fix actions on download manager

* Trigger subscription update from manager page

* Fix timestamp precision issue in plugin

* Show target API version

* Update last checked from manager page

* Update last checked even when no chapters found

* Fix null pid

* Clean up

* Document the subscription endpoints

* Fix BigFloat conversion issue

* Confirmation before deleting subscriptions

* Reset table sort options

* Show manga title on subscription manager

src/library/entry.cr

@@ -59,6 +59,7 @@ class Entry
         json.field {{str}}, @{{str.id}}
       {% end %}
         json.field "title_id", @book.id
+        json.field "title_title", @book.title
         json.field "sort_title", sort_title
         json.field "pages" { json.number @pages }
         unless slim