Sort by number of pages

[OncePunchedMan]

Describe your suggested feature

Currently there is no way to sort by number of pages.
However Komga detects how many pages there are already, so sorting by it might be a nice addition imo.

Other details

Basically the same as #734. It got closed automatically back then and i wondered if it could be thought about some more?

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
• I have written a short but informative title.
• I have updated the app to the latest version.
• I will fill out all of the requested information in this form.