Set translation domain for whole form

[core23]

Subject

Set translation domain for whole form. All form extensions will use NucleosProfileBundle as domain.

[codecov]

Codecov Report

Merging #12 into master will increase coverage by 0.27%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master      #12      +/-   ##
============================================
+ Coverage     39.58%   39.86%   +0.27%     
  Complexity      122      122              
============================================
  Files            21       21              
  Lines           432      434       +2     
============================================
+ Hits            171      173       +2     
  Misses          261      261

Impacted Files	Coverage Δ	Complexity Δ
src/Form/Type/RegistrationFormType.php	100% <100%> (ø)	3 <0> (ø)	⬇️
src/Form/Type/ProfileFormType.php	100% <100%> (ø)	3 <0> (ø)	⬇️

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