chore: add full test coverage

[ghiscoding]

use co-pilot to add full test coverage, I will and probably should review it all before merging the PR

TODOs:

• manually test with demo site to make sure all example exports are still working as intended
• review all files in the PR and make all new tests make sense

[bolt-new-by-stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (39524d9) to head (84c26ae).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##            main     #141     +/-   ##
========================================
+ Coverage   91.5%   100.0%   +8.6%     
========================================
  Files         25       25             
  Lines       2329     2329             
  Branches     453      495     +42     
========================================
+ Hits        2130     2329    +199     
+ Misses       199        0    -199     

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