FE: Allow users to map an available agent to a group

MR: Add Map/unmap agent actions to Agent auth UI (!154303 - merged)

Description

As a group owner or instance admin, I want to map an agent to a group so it can be used by developers to create Remote Development workspaces.

Acceptance Criteria

• This action is only allowed to group owners and instance administrators.
• This action is only available on unmapped agents.
• The action appears as a button next to an agent in the "All agents" table. The button label is "Allow" indicating that an agent is available to use to create Workspaces.

Technical Requirements

• The "Allow" button should display a loading indicator and become disabled while the mapping operation is in progress.

Design Requirements

Design reasoning here

Impact Assessment

TODO: Fill out or delete [Please describe the impact this feature/enhancement will have on the user experience and/or the product as a whole.]

User Story

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