Limit the number of pseuds displayed on the dashboard sidebar and the profile page

Description

Most users have only a few pseuds, so the lack of a limit doesn't matter. This is mainly for the statistical outlier (orphan_account, 11k pseuds on beta).

How to test:

Post deploy:

Ideally this should be fixed at the same time as AO3-5889.

Environment

None

Assignee

Unassigned

Reporter

redsummernight

Roadmap

Pseuds

Priority

Medium

Affects versions

Fix versions

None

Components

BackEnd
FrontEnd

Difficulty

Medium

Required Access Level

None

Milestone

Internal 0.9
Configure