[ui] "Clone and Edit" functionality for versions

[philrenaud]

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Adds "Clone and Edit" alongside "Revert Version" on the Versions page:

Because we're passing template strings via query params, this means you can use ?sourceString= on the jobs run page to send someone a readily-editable job spec, using a URL like this.

This also adds a few UX conveniences like prompting a user to "run as a new job instead" if they try updating a job definition and changing its name (which fails a plan request), and reminding them to change the job name in the event they try to clone as a new one

Resolves #24156

[github-actions[bot]]

Ember Test Audit comparison

	main	af31960a62a6909bd6dc766e6729b2bc3e03d572	change
passes	1581	1581	0
failures	0	0	0
flaky	0	0	0
duration	13m 38s 594ms	13m 27s 414ms	-11s 180ms

[aimeeu]

@philrenaud when this is merged, we also need to update the screenshots, and possibly text, in the job versions guide.

[github-actions[bot]]

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