SubmitEvent.submitter & FormData(form, submitter)

[filiphlm]

Solves #401. No polyfill(s) included.

[jiripudil]

Thanks, I really like how this simplifies things. I just have a few suggestions regarding the BC and ergonomics of the API

[codecov]

Codecov Report

Attention: Patch coverage is 82.60870% with 4 lines in your changes missing coverage. Please review.

Project coverage is 94.53%. Comparing base (509dbd6) to head (eeb868d).

❗ Current head eeb868d differs from pull request most recent head 2255ac4

Please upload reports for the commit 2255ac4 to get more accurate results.

Files	Patch %	Lines
src/core/UIHandler.ts	82.60%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #402      +/-   ##
==========================================
+ Coverage   94.29%   94.53%   +0.23%     
==========================================
  Files          11       11              
  Lines        1298     1262      -36     
  Branches      177      168       -9     
==========================================
- Hits         1224     1193      -31     
+ Misses         72       67       -5     
  Partials        2        2              

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[jiripudil]

Hi, sorry this took me so long. I've been having a downswing in terms of time and energy that I'm willing to dedicate to OSS recently.

While reviewing the code, I've had some more thoughts on how to improve its type safety. I took the liberty of implementing the ideas myself, because I didn't want you to have to wait another month for me to come back to this.

I really appreciate the good work you've put into this, and I'm looking forward to your future contributions!