Description

If user is opening modal forms, that have a lot of hidden fields on opening the pop-up, in some occasions,  the redundant window resizing / jumping is displayed while form is loading and on Safari browser also error "ResizeObserver loop completed with undelivered notifications" is appearing in the console.

Examples: Media types, Host -> Inventory tab, Actions -> Operations, Api token etc.

Note: issue with glitch is reproducible on different browsers, however only when using Safari the console error appears.

Steps to reproduce:

Precondition: Use safari browser to see the console error, or any other browser to reproduce the visual glitch

1. Open any of the modal windows, mentioned in the description
2. Observe the animation and console log  

Result:
For some forms, there is noticeable visual glitch with resizing the window, and error is appearing in the console on Safari

See video (example from media types):

Expected:
No visual glitches should be displayed on supported browsers, no errors should be present in the console.