[docs-infra] Add Cookie Banner and Analytics Provider

[dav-is]

Adds the init script for https://www.apollo.io/ and asks for consent from the user:

Cookie Preferences
We use cookies to understand site usage and improve our content. This includes third-party analytics.
[Essential only] OR [Allow analytics]

Essential only does not send data to Apollo and Google Analytics is set to analytics_storage: 'denied'.

These are the defaults Google defines

  'ad_storage': 'denied',
  'ad_user_data': 'denied',
  'ad_personalization': 'denied',
  'analytics_storage': 'denied', // we update this when the user allows it

Do we need to enable these other permissions? If so should we alter the message we display?

Preview URL

[mui-bot]

Netlify deploy preview

https://deploy-preview-47445--material-ui.netlify.app/

Bundle size report

Bundle	Parsed size	Gzip size
@mui/material	0B(0.00%)	0B(0.00%)
@mui/lab	0B(0.00%)	0B(0.00%)
@mui/system	0B(0.00%)	0B(0.00%)
@mui/utils	0B(0.00%)	0B(0.00%)

Details of bundle changes

Generated by 🚫 dangerJS against d79f6b7

[mnajdova]

@noraleonte can you provide any feedback on the design side? Thank you! :) Also, let's follow https://mui.com/material-ui/react-dialog/#non-modal-dialog for the interactions.

[Janpot]

Would probably be a good idea to try this out with X before merging. (You can just point @mui/monorepo to your fork ina PR)