Feat: Add patchError function to FormBuilder

[GChanathip]

Connection with issue(s)

Close #???

Connected to #???

Solution description

This method help us to add errors to fields at once.
This is useful if form need to validate by server.

Screenshots or Videos

To Do

• Read contributing guide
• Check the original issue to confirm it is fully satisfied
• Add solution description to help guide reviewers
• Add unit test to verify new or fixed behaviour
• If apply, add documentation to code properties and package readme

[GChanathip]

not sure if everyone like this behavior.
if yes, i will write tests to cover this function.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 5 lines in your changes missing coverage. Please review.

Project coverage is 89.47%. Comparing base (fffb27d) to head (2d6fe1e).

Files with missing lines	Patch %	Lines
lib/src/form_builder.dart	50.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1483      +/-   ##
==========================================
- Coverage   89.88%   89.47%   -0.41%     
==========================================
  Files          21       21              
  Lines         840      846       +6     
==========================================
+ Hits          755      757       +2     
- Misses         85       89       +4     

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[deandreamatias]

Hi!
This is interesting, but I need evaluate how can integrate with existent API and with future features (like #1485).

Also, need to align with discussion #1466 and with maintenance philosophy.