Add error handler example for embedded components

[cmdcolin]

See #3849

[codecov]

Codecov Report

Merging #3957 (559ae95) into main (9d3eb2f) will increase coverage by 0.01%.
The diff coverage is n/a.

❗ Current head 559ae95 differs from pull request most recent head d2a7d67. Consider uploading reports for the commit d2a7d67 to get more accurate results

@@            Coverage Diff             @@
##             main    #3957      +/-   ##
==========================================
+ Coverage   63.66%   63.68%   +0.01%     
==========================================
  Files        1019     1019              
  Lines       30216    30216              
  Branches     7207     7207              
==========================================
+ Hits        19236    19242       +6     
+ Misses      10812    10806       -6     
  Partials      168      168              

see 2 files with indirect coverage changes

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