[WEB] Upgrade React to 19

[merobi-hub]

Problem

Now that React is on 18.3, we can easily upgrade to 19.

Solution

Upgrade React to 19, including the relevant types.

One-line summary: upgrade React to 19

Checklist

• You've signed-off your work
• Your changes are accompanied by tests (if relevant)
• Your change contains a small diff and is self-contained
• You've updated any relevant documentation (if relevant)
• You've included a one-line summary of your change for the CHANGELOG.md (Depending on the change, this may not be necessary).
• You've versioned your .sql database schema migration according to Flyway's naming convention (if relevant)
• You've included a header in any source code files (if relevant)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.18%. Comparing base (3422817) to head (edcc924).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3097      +/-   ##
============================================
+ Coverage     81.02%   81.18%   +0.16%     
- Complexity      241     1506    +1265     
============================================
  Files            43      268     +225     
  Lines           996     7356    +6360     
  Branches         40      325     +285     
============================================
+ Hits            807     5972    +5165     
- Misses          160     1226    +1066     
- Partials         29      158     +129     

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[merobi-hub]

@phixMe It turns out "easily" was very wishful thinking. I went with any type definitions to get around known issues with d3 and react-i18n that I propose we deal with separately.

[phixMe]

Thanks @merobi-hub for doing this. TypeScript version looks good now.