[Workspace] Add update workspace page

[gaobinlong]

Is your feature request related to a problem? Please describe.

After users create a workspace, they may want to update the workspace name, description or the feature set when they need, so we should have an update page for workspace.

Describe the solution you'd like

Add a new page for users to update the workspace attributes, such as name, description, feature set, color etc.

Additional context

In terms of user experience, the update page should be consistent with the create workspace page: #6179.

[ruanyl]

Close this one as it's completed