Add 'Clone' feature to file tree

[lf94]

Clones files and folders in the file tree.

2025-02-03_14-32-41.mp4

Resolves #3089

[qa-wolf]

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[vercel]

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Name	Status	Preview	Updated (UTC)
modeling-app	✅ Ready (Inspect)	Visit Preview	Feb 4, 2025 10:02pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.97%. Comparing base (5c830a4) to head (cec4288).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5232   +/-   ##
=======================================
  Coverage   85.97%   85.97%           
=======================================
  Files          90       90           
  Lines       33059    33059           
=======================================
  Hits        28424    28424           
  Misses       4635     4635           

Flag	Coverage Δ
wasm-lib	85.97% <ø> (ø)

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[pierremtb]

Looking good, and tested locally ✅ Just a nitpick on the menu item label but not a blocker to merge at all!

[github-actions]

src/lib/exampleKcl.ts has been updated in this PR, please review and update the src/routes/onboarding, if needed.