[SG-420] Fixed password match defect (#3075)

* fixed password match defect

* change custom validator to static methods

libs/angular/src/validators/inputsFieldMatch.validator.ts

@@ -0,0 +1,57 @@
+import { AbstractControl, FormGroup, ValidatorFn } from "@angular/forms";
+
+import { FormGroupControls } from "@bitwarden/common/abstractions/formValidationErrors.service";
+
+export class InputsFieldMatch {
+  //check to ensure two fields do not have the same value
+  static validateInputsDoesntMatch(matchTo: string, errorMessage: string): ValidatorFn {
+    return (control: AbstractControl) => {
+      if (control.parent && control.parent.controls) {
+        return control?.value === (control?.parent?.controls as FormGroupControls)[matchTo].value
+          ? {
+              inputsMatchError: {
+                message: errorMessage,
+              },
+            }
+          : null;
+      }
+
+      return null;
+    };
+  }
+
+  //check to ensure two fields have the same value
+  static validateInputsMatch(matchTo: string, errorMessage: string): ValidatorFn {
+    return (control: AbstractControl) => {
+      if (control.parent && control.parent.controls) {
+        return control?.value === (control?.parent?.controls as FormGroupControls)[matchTo].value
+          ? null
+          : {
+              inputsDoesntMatchError: {
+                message: errorMessage,
+              },
+            };
+      }
+
+      return null;
+    };
+  }
+
+  //checks the formGroup if two fields have the same value and validation is controlled from either field
+  static validateFormInputsMatch(field: string, fieldMatchTo: string, errorMessage: string) {
+    return (formGroup: FormGroup) => {
+      const fieldCtrl = formGroup.controls[field];
+      const fieldMatchToCtrl = formGroup.controls[fieldMatchTo];
+
+      if (fieldCtrl.value !== fieldMatchToCtrl.value) {
+        fieldMatchToCtrl.setErrors({
+          inputsDoesntMatchError: {
+            message: errorMessage,
+          },
+        });
+      } else {
+        fieldMatchToCtrl.setErrors(null);
+      }
+    };
+  }
+}