migrate package to null safety

[Ritesh Khadse]

After flutter 2.0 update every package needs to be migrated to null safety.

[Benjamin Božič]

I posted PR #11. Until it is merged, you can add plugin like this:

  form_field_validator:
    git:
      url: https://github.com/Ethirallan/form_field_validator.git
      ref: master

[Fırat Çetiner]

Any updates about when this will be merged? @Milad-Akarie

[Leszek Król]

@Milad-Akarie @Ethirallan Any update?

[Milad Akarie]

@MeAtPros done, sorry for the delay.

[Milad Akarie]

@Ethirallan Thanks for your efforts.