Allow a Release's release link assets to be edited through the "Edit Release" page

Problem to solve

Editing release assets via UI, specifically release links, will empower our vision for runbooks #9427 (closed).

Users want to be able to attach release plans to their Releases in GitLab. They want to be able to see tasks related to a specific release, which means on the Release Landing page as well as in the Release Dedicated view.

Target audience

Release Managers and teams involved in executing releases
Our internal customers are the #production team (for runbooks in general) and #delivery team (for release plans).

UX Proposal

We will enable users to edit an Asset Link (such as Runbooks) using the UI GitLab on Releases Page.

🖼 SEE UX PROTOTYPES IN THE DESIGN TAB 🖼

User stories

As a Release Manager, I want to link assets to my release, so that I can combine planning all items, whether or not they are in GitLab, into my release plan.

Acceptance criteria:

While editing a release using GitLab's UI, user sees a new Links option in the form, under the new section header Assets.
The data should be pre-populated while editing the form, if applicable.
The acceptance criteria from #9427 (closed) should be duplicated here.
Once updated, the new data should be reflected on the Releases overview and detail page.

What does success look like, and how can we measure that?

As a factor of adoption, this feature should increase the number of runbooks linked in release pages.

Documentation

Yes, this feature will require updates to our documentation.