Issues with static/scrolling sidebar and algolia search results

[lb-]

• issue where overflow-x hidden was added but not required if hidden submit button wraps (not algolia specific necessarily)
• added search content (input and results) causes width of sidebar to make content wrap - maybe add nowrap to main container
• search results not able to be shown inside scrollable container - not sure on any practical fix to this

https://github.com/wagtail/wagtail/blob/main/docs/_static/css/custom.css

Notes

• Run Wagtail docs locally without the custom.css overrides - open the search results - observe they get cut off
• We should allow the hidden search submit button to wrap so that we do not need overflow-x-hidden
• Need to ensure that the outer container, on lg? devices (with .sidebar-container inside) should not wrap