Send JSON to server

lib/presentation/language_select_screen/models/language_select_model.dart

@@ -14,21 +14,21 @@ class LanguageSelectModel extends Equatable {
     email: '',
     password: '',
     passwordConfirmation: '',
-    termsAccepted: false,
-    birthdate: DateTime.now(),
+    termsAccepted: 'accepted',
+    birthdate: DateTime.now().toString(),
     gender: '',
     country: '',
     city: '',
     lang: '',
-    weight: 0,
-    height: 0,
-    chestCircumference: 0,
-    waistCircumference: 0,
-    hipCircumference: 0,
-    bloodPressureUp: 0,
-    bloodPressureDown: 0,
-    hasHypo: false,
-    hasHyper: false,
+    weight: '',
+    height: '',
+    chestCircumference: '',
+    waistCircumference: '',
+    hipCircumference: '',
+    bloodPressureUp: '',
+    bloodPressureDown: '',
+    hasHypo: '',
+    hasHyper: '',
     aboutAllergy: '',
     aboutTakingPils: '',
     aboutSportHobbies: '',