Co-authored-by: hrwx <himanshuwarekar@yahoo.com>
Co-authored-by: Raffael Meyer <14891507+barredterra@users.noreply.github.com>
Co-authored-by: Ankush Menat <ankush@frappe.io>
(cherry picked from commit b0c1e400ea)

Co-authored-by: Shariq Ansari <30859809+shariquerik@users.noreply.github.com>

(cherry picked from commit 40f27f908a)

Mandatory fields are highlighted red on page load. It should only highlight if we save the document.

**Before:** Form

https://user-images.githubusercontent.com/30859809/168791201-049c1de2-b7f5-4dff-bf40-093ff96d4510.mov

**After:** Form

https://user-images.githubusercontent.com/30859809/168791164-45e2289b-2d2c-4ebb-8b4d-cd2932140572.mov

**Before:** Dialog

https://user-images.githubusercontent.com/30859809/168791207-800ba9e5-b4eb-419f-8a99-f94916c21c79.mov

**After:** Dialog

https://user-images.githubusercontent.com/30859809/168791210-f2761d23-3a60-40c2-8aff-2d2cebbd77fa.mov

Resolves https://github.com/frappe/frappe/issues/16866

(using the newly added API's)

(using the newly added API's)