Improve UX of "Remember credentials" toggle in deployment

[smbea]

What should we do?

Improve the UX of "Remember credentials" toggle in the deployment overlay for Cloud.

• Make 'Remember credentials' toggle always available (currently not available for self-managed target with no OATH)
• Save credentials onClose, regardless if the deployment succeed

Why should we do it?

This is part of a bigger effort to improve the UX of the deployment journey (see #2707)

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Child of #2707

[smbea]

I decided to save credentials only on close since they are only reset (to the saved ones)when opening the overlay again

[andreasgeier]

I decided to save credentials only on close since they are only reset (to the saved ones)when opening the overlay again

If one adds/changes the credentials (toggle was already activated or has been activated) and then deploys, are the new credentials stored?

[smbea]

• If deploy successful -> it will always save
• If deploy connection cannot be established (wrong credentials or so) -> validation kicks-in so the deploy doesn't proceed and the overlay doesn't close. But if you close it later it saves.

I hope this makes sense, but I will add you as a reviewer for this PR and you can test the artifact.