Add default flutter adapter type ids to doc comment

[Rexios80]

Fixes #291

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.63%. Comparing base (d3ec164) to head (b6a79bc).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #292      +/-   ##
==========================================
+ Coverage   93.59%   93.63%   +0.03%     
==========================================
  Files          64       64              
  Lines        2622     2622              
==========================================
+ Hits         2454     2455       +1     
+ Misses        168      167       -1     

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