[Todo] Prevent search (on mobile devices) from resetting `window.scrollY`

[colebemis]

Searching on mobile is not a great experience. Every time you type a character in the search input it jumps back to the top of the page, obscuring the search input and results. Let’s fix this.

[zaydek]

This has also been visually documented here https://twitter.com/edwinencomienda/status/1296919293658112000.

[zaydek]

#287 should be tackled at the same time.