fix: Update Hot reloading and react Helmet

[camd]

This updates only the Hot reloader and react-helmet.

It was part of the larger Deprecation PR. But that was getting so big, I felt it would be easier to manage in smaller pieces.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 44.44444% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.95%. Comparing base (5d64caf) to head (0bfd712).

Files with missing lines	Patch %	Lines
ui/App.jsx	44.44%	5 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9112   +/-   ##
=======================================
  Coverage   79.95%   79.95%           
=======================================
  Files         600      600           
  Lines       32560    32560           
  Branches     3310     3366   +56     
=======================================
  Hits        26032    26032           
+ Misses       6362     6357    -5     
- Partials      166      171    +5     

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