Fix wasm examples

[nathanielsimard]

• Moved the wasm dependencies to the examples to speed up compilation of the whole workspace.
• Fix the lazy_init import in mnist-inference-web plus added the default runtime options.
• Updated the model.binof mnist-inference-web since the old one wasn't compatible anymore.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.37%. Comparing base (c7ad25a) to head (bf72bdd).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1824   +/-   ##
=======================================
  Coverage   86.37%   86.37%           
=======================================
  Files         748      748           
  Lines       86819    86819           
=======================================
  Hits        74992    74992           
  Misses      11827    11827           

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