Request: An even more adaptive searchbar

[callummscott]

Requests

1. In the last update, I implemented the behaviour of the search inputs extending to fill the title-page-contents for short landscape views. I think this behaviour should extend to narrow portrait views as well.
2. If it could somehow extend when clicked on without moving the words weirdly, maybe by centering it, then that'd be good. But maybe it'd have to suffice to just make it longer for larger devices, or carry over the contents filling behaviour to other cases