[2.3.0] Checkmk Werk 17333 created: Stop dropdowns in form groups from breaking scroll behavior

[//]: # (werk v2) # Stop dropdowns in form groups from breaking scroll behavior key | value ---------- | --- date | 2024-10-23T13:11:46+00:00 version | 2.3.0p20 class | fix edition | cre component | wato level | 1 compatible | yes When editing a rule based on a form spec which contains a dictionary with grouped elements that contain a dropdown (the SingleChoice form spec for example), the page would no longer be scrollable after opening one such dropdown. This lead to the `httpv2` rule breaking the scrolling behavior in multiple locations. With this werk, we fix the underlying issue when rendering a dropdown in the browser. Now, the page will continue to be scrollable after such a dropdown has been clicked.