Add URLSearchParams polyfill

[Valerioageno]

Currently, on the client side, in order to set the location.search object, we interact with the URLSearchParams interface.

search: Object.fromEntries(new URLSearchParams(location.search)),

Since we don't have such polyfill we are not actually doing it on the server side, making the search key not meaningful for server side rendering purposes.

This task should introduce the polyfill for the URLSearchParams interface and update the server side context location as following:

// Router Context
...
searchStr: serverSideProps?.searchStr || '',
search: Object.fromEntries(new URLSearchParams(serverSideProps?.searchStr || '')),