feat(flutter_tools): Changed NoIdeValidator validation type from error to warning (#95492)

packages/flutter_tools/lib/src/doctor_validator.dart

@@ -285,7 +285,8 @@ class NoIdeValidator extends DoctorValidator {
   @override
   Future<ValidationResult> validate() async {
     return ValidationResult(
-      ValidationType.missing,
+      // Info hint to user they do not have a supported IDE installed
+      ValidationType.notAvailable,
       globals.userMessages.noIdeInstallationInfo.map((String ideInfo) => ValidationMessage(ideInfo)).toList(),
       statusInfo: globals.userMessages.noIdeStatusInfo,
     );

packages/flutter_tools/test/commands.shard/hermetic/doctor_test.dart

@@ -88,7 +88,7 @@ void main() {
 
     testUsingContext('No IDE Validator includes expected installation messages', () async {
       final ValidationResult result = await NoIdeValidator().validate();
-      expect(result.type, ValidationType.missing);
+      expect(result.type, ValidationType.notAvailable);
 
       expect(
         result.messages.map((ValidationMessage vm) => vm.message),