RI-7681: Make info section fixed + apply scrolling properly

[dantovska]

What

When there is not enough space for the content in the form modals, scroll should be applied.

For the edit forms, the scroll should not apply to the info section + tabs - it should remain fixed. It applies only on the form on each tab.

Testing

Before:

Screen.Recording.2025-11-11.at.17.01.15.mov

After:

Screen.Recording.2025-11-11.at.17.02.54.mov

[github-actions]

Code Coverage - Frontend unit tests

St.❔	Category	Percentage	Covered / Total
🟢	Statements	82.6%	20577/24912
🟡	Branches	67.72%	8776/12960
🟡	Functions	77.27%	5538/7167
🟢	Lines	83.01%	20147/24272

Test suite run success

5270 tests passing in 689 suites.

Report generated by 🧪jest coverage report action from 4beb981

[valkirilov]

Tip: You can use FlexGroup or Col instead of a regular div, so you don't have to define the flex properties on your own.

PS: The same note applies for the other classes bellow, as well.

[dantovska]

Thanks! Using FlexGroup or Col add a lot of different styles with them, which I try to avoid and make it simple due to the sensitive scenario with the scrolling, that is why I decided to go with this approach.