feat(webapp): [notifications] support 'warning' status and arbitrary jsx element

[eh-am]

Support a warning level:

Also support an arbitrary JSX element to be passed as message, as opposed to only strings:

[codecov]

Codecov Report

Base: 66.10% // Head: 66.10% // No change to project coverage 👍

Coverage data is based on head (b8db3dd) compared to base (6ee40bc).
Patch coverage: 50.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1656   +/-   ##
=======================================
  Coverage   66.10%   66.10%           
=======================================
  Files         146      146           
  Lines        4987     4987           
  Branches     1144     1144           
=======================================
  Hits         3296     3296           
  Misses       1685     1685           
  Partials        6        6           

Impacted Files	Coverage Δ
webapp/javascript/ui/Notifications.tsx	39.48% <50.00%> (ø)

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
webapp/public/assets/app.js	482.34 KB (+0.01% 🔺)	9.7 s (+0.01% 🔺)	4.3 s (+18.3% 🔺)	13.9 s
webapp/public/assets/app.css	18 KB (0%)	360 ms (0%)	0 ms (+100% 🔺)	360 ms
webapp/public/assets/styles.css	9.52 KB (0%)	191 ms (0%)	0 ms (+100% 🔺)	191 ms
packages/pyroscope-flamegraph/dist/index.js	128.33 KB (0%)	2.6 s (0%)	1.7 s (-6.86% 🔽)	4.3 s
packages/pyroscope-flamegraph/dist/index.node.js	128.76 KB (0%)	2.6 s (0%)	724 ms (-25.62% 🔽)	3.3 s
packages/pyroscope-flamegraph/dist/index.css	7.5 KB (0%)	150 ms (0%)	0 ms (+100% 🔺)	150 ms

[Rperry2174]

LGTM