Docusaurus migration issues

[yangshun]

Do you want to request a feature or report a bug?

Bug (sorta)

What is the current behavior?

Some issues I just discovered with the migration of Draft.js to Docusaurus. Perhaps we can use this issue as a master issue to keep track of the smaller issues.

• Footer not bottom-sticky on home page (This is something that has to be fixed in Docusaurus core)
• On mobile widths, the editor exceeds the width and the page is horizontally scrollable
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• The development version of React is being used
  • 

cc @NoamELB

[NoamELB]

Regarding mobile, I think we should not show the editor at all (it's not supported in mobile). @flarnie do you agree?
@yangshun want me to create a PR for the sticky footer? I'd be glad to help out 😄

[yangshun]

@NoamELB Docusaurus would be so glad to receive your PR 😄

[flarnie]

We could omit the editor on mobile, but it also looks like the default docusaurus layout could be a bit more responsive.

Super happy to see this being picked up, thank you so much @NoamELB :)