[WIP] Add clear SSH key functionality

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>ui: add clear SSH key</issue_title>
<issue_description></issue_description>

<agent_instructions>empty string should probably clear it, no min length</agent_instructions>

Comments on the Issue (you are @copilot in this section)

@adeebshihadeh Eh, not clear this is needed. @sshane empty string should probably clear it, no min length

• Fixes ui: add clear SSH key #37209

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[sshane]

@copilot try again