Chore/performance

[tsubik]

• upgraded React to version 18
• upgraded Next.js to version 14
• smaller and better-optimized images for mobile devices (and desktop)
• use an optimized version of font woff2 instead of woff
• install and configure brotli compression in nginx, tweak gzip configuration as well
• load only visible components and lazy load on demand the rest if it was possible and easy to implement
• preconnect to 3rd party domains
• fixing nextjs middleware (actually removing it as it didn't work as expected, an additional request on every page was made)
• improving various API request by decreasing the amount of downloaded data
• paying attention to page props to not inflate initial downloaded HTML too much
• removing map layers from store (to not inflate HTML on every request)
• decrease the size of common javascript downloaded on every site (First Load JS shared by all) from 238kB to 178kB (25% decrease)
• compile languages before and not use parser part of formatjs
  - provide translations in a separate request (before hydration)
• remove most of the lodash helpers or switch to smaller alternatives
• lazy load modules whenever it was possible
• no need for react-dom/server on the client
• upgrading Sentry and configuring only to use what we need and shake off the rest
• loading critical CSS first and the rest asynchronously