Add the ability to share search results via url and improve search feature

Description

Persisting filtered views had been requested at our last demo. This implements the feature via use-query-params.
Adds a new /search route
Light / Dark mode obeys the user's browser preferences
Improves the search feature by adding weights and thresholds.
Enhances test suite with more specific selectors
The test suite workflow now generates screenshots for each route which can be downloaded from the github action
Adds ExtendedSearch for complex search queries:

Token	Match type	Description
jscript	fuzzy-match	Items that fuzzy match jscript
=scheme	exact-match	Items that are scheme
'python	include-match	Items that include python
!ruby	inverse-exact-match	Items that do not include ruby
^java	prefix-exact-match	Items that start with java
!^earlang	inverse-prefix-exact-match	Items that do not start with earlang
.js$	suffix-exact-match	Items that end with .js
!.go$	inverse-suffix-exact-match	Items that do not end with .go