feat(examples): add p/fqname

[moul]

Extracted from #2551 (also #2516).

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.84%. Comparing base (5503cca) to head (d51bb7b).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2808      +/-   ##
==========================================
+ Coverage   60.83%   60.84%   +0.01%     
==========================================
  Files         563      563              
  Lines       75193    75193              
==========================================
+ Hits        45743    45753      +10     
+ Misses      26076    26072       -4     
+ Partials     3374     3368       -6     

Flag	Coverage Δ
contribs/gnodev	61.46% <ø> (ø)
contribs/gnofaucet	14.46% <ø> (ø)
gno.land	67.17% <ø> (ø)
misc/genstd	80.54% <ø> (ø)
misc/logos	19.88% <ø> (-0.36%)	⬇️

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