Search - iterative improvements

[chris-gds]

What

As part of this PR this search interaction was reviewed in a holistic way. Some suggestions below:

Search iterative improvements

Issue	Potential Fix
The button on mobile, aren't buttons but links which impacts WCAG 1.3.1	These could be updated to buttons however the overall Design would need be adjusted also
	Review font weight across views
	Update Accordion Design to match updated version, impacting WCAG 3.2.4
	Increase size of mobile copy
	Align search input swap to component

Why

Improve Accessibility and consistency