feat(gui): Added GUI support for destinationServiceAccount field

[raghavi101]

Jira : https://issues.redhat.com/browse/GITOPS-3505

• Destination Service Account gets rendered and the UI takes in server, namespace and defaultServiceAccount values.

[raghavi101]

Hi @keithchong I've rendered the above fields and it takes in the values as well as appends new values. Do take a look because I'm trying to see how i can get these to work :

• validate each field for empty values
• validate for duplicate values
• send these values to the API which can then use these values to do the impersonation job.

[keithchong]

This was what I mentioned about. You have to create a global project and have one inherit from it to see this section. It's non-editable.

[keithchong]

For the bullet points above, the Project's Update API needs to be changed. I think Anand is working/will be working on it. I believe the API will return an error for any invalid input values, so you probably don't have to do anything more.