WIP: Add edit flow for Shell thickness

[pierremtb]

Would fix #5406 but not like this :sad:

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Name	Status	Preview	Updated (UTC)
modeling-app	✅ Ready (Inspect)	Visit Preview	Feb 26, 2025 11:11pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.32%. Comparing base (5743b9c) to head (481890e).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5525      +/-   ##
==========================================
- Coverage   86.32%   86.32%   -0.01%     
==========================================
  Files          95       95              
  Lines       35952    36020      +68     
==========================================
+ Hits        31036    31093      +57     
- Misses       4916     4927      +11     

Flag	Coverage Δ
wasm-lib	86.32% <ø> (-0.01%)	⬇️

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