chore(docs): upgrading docusaurus (fixes header links)

[rusackas]

SUMMARY

Header links, when clicked, were scrolling off page. Upon some digging, it looks like this was fixed and we're due for an upgrade. So... fingers crossed!

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

Deploy, then sanity-check the site and the header links. Revert if needed.

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #24118 (64d8a9a) into master (2222073) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #24118   +/-   ##
=======================================
  Coverage   68.30%   68.30%           
=======================================
  Files        1952     1952           
  Lines       75432    75432           
  Branches     8191     8191           
=======================================
  Hits        51521    51521           
  Misses      21807    21807           
  Partials     2104     2104           

Flag	Coverage Δ
hive	53.17% <ø> (ø)
javascript	54.70% <ø> (ø)
mysql	78.94% <ø> (ø)
postgres	79.01% <ø> (ø)
presto	53.10% <ø> (ø)
python	82.81% <ø> (ø)
sqlite	77.54% <ø> (ø)
unit	53.09% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

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[rusackas]

FWIW, this seems to build find and run in dev mode just fine on my local machine :)