RecoilURLSync has unnecessary encodeURIComponent for search serializer

[alexeychikk]

I don't understand why do you need encodeURIComponent since you already delegate serialization to the user

Recoil/packages/recoil-sync/RecoilSync_URL.js

Line 108 in c1b97f3

url.search = encodeURIComponent(serialize(unwrapState(items)));

My use-case is the following:

import { parse, stringify } from 'query-string';
// ...
          <RecoilURLSync
            serialize={stringify}
            deserialize={parse}
            location={{ part: 'search' }}
          >

This redundant encodeURIComponent encodes = and & characters in the already serialized string.
For example gameId=foo&gameId=bar becomes gameId%3Dfoo%26gameId%3Dbar