Review UX for removing password fields in connection form

[pmbrull]

Password fields in the connection form when editing a connection don't come back from the API. This is expected, but does not allow users to remove a password field completely. E.g., imagine an optional password field such as the private key in snowflake connector.

We need to keep the information safe (we dont want password fields to come back from API), but we should still allow from UX perspective to remove those fields and thus, remove the secrets from the Secrets Manager

[miantalha45]

@pmbrull @ulixius9 i would love to work on this issue if you guys allow me.

[aniketkatkar97]

Hey @miantalha45, thanks, assigned you.

[miantalha45]

@aniketkatkar97 Thank you so much, I will raise a PR for this shortly.