Implement workspace description editing functionality in Workspace List view
MR: Pending <!-- NOTE: For context on MR heading, see: https://handbook.gitlab.com/handbook/engineering/devops/dev/create/remote-development/index.html#relationship-of-issues-to-mrs --> ## Description As part of our [new designs for Workspaces](https://gitlab.com/groups/gitlab-org/-/epics/18674), we need to implement the editing functionality for workspace descriptions so that users can update their workspace descriptions. As part of this issue we will need to update the `description` field created in https://gitlab.com/gitlab-org/gitlab/-/issues/562374+s by adding an edit link to the description section created in https://gitlab.com/gitlab-org/gitlab/-/issues/565047+s ## Acceptance criteria - [ ] "Edit" link opens inline editing interface - [ ] Save changes via `workspaceUpdate` GraphQL mutation to update workspace description - [ ] Cancel functionality reverts to original description without saving - [ ] Show loading state during save operation with disabled UI - [ ] Display error messages for failed save operations - [ ] When description is null/empty, show "Add description" link instead of "Edit" - [ ] "Add description" opens same editing interface as "Edit" - [ ] Validate description length according to backend field constraints ## TODO: Implementation plan <!-- NOTE: Feel free to expand with more sections and headers as needed --> <!-- DO NOT TOUCH BELOW -->
issue