fix(aci): Fix issue with manual cron monitor selected project

[malwilley]

#112484 caused a bug when creating cron monitors manually. The selected project will throw because the projectId is reset when the ProjectField gets rendered.

This is a quirk with the old form system, but all form fields need to be available on first render, otherwise they will reset form state when they come back in. This change makes sure that the form fields are rendered but hidden until you click "manually create monitor"

This does fix a hidden existing bug, which is that the initialData passed to the form was not actually being set for cron monitors.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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