Pass parameter keyboardType to material showDatePicker

[Brunobnahorny]

Hello!

Close: #1351

We got some issues with users trying to edit the date in the material datepicker with Samsung Keyboard.
Sadly is a well known flutter issue,
flutter/flutter#62401

Solution description

The material datepicker allow to choose the keyboardType. Although it's not the best user experience, we want to set the keyboardType to text. The FormBuilderDateTimePicker receives the parameter put don't pass it for the material showDatePícker.

Screenshots or Videos

#1351
I opened the above issue to discuss the default value of FormBuilderDateTimePicker

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ba065e5) 87.74% compared to head (7ea7743) 88.02%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1352      +/-   ##
==========================================
+ Coverage   87.74%   88.02%   +0.27%     
==========================================
  Files          21       21              
  Lines         759      760       +1     
==========================================
+ Hits          666      669       +3     
+ Misses         93       91       -2     

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