chore: Add business email validation on signup (#6037)

app/javascript/dashboard/routes/auth/Signup.vue

@@ -39,11 +39,11 @@
           <woot-input
             v-model="credentials.accountName"
             :class="{ error: $v.credentials.accountName.$error }"
-            :label="$t('REGISTER.ACCOUNT_NAME.LABEL')"
-            :placeholder="$t('REGISTER.ACCOUNT_NAME.PLACEHOLDER')"
+            :label="$t('REGISTER.COMPANY_NAME.LABEL')"
+            :placeholder="$t('REGISTER.COMPANY_NAME.PLACEHOLDER')"
             :error="
               $v.credentials.accountName.$error
-                ? $t('REGISTER.ACCOUNT_NAME.ERROR')
+                ? $t('REGISTER.COMPANY_NAME.ERROR')
                 : ''
             "
             @blur="$v.credentials.accountName.$touch"
@@ -104,6 +104,9 @@ import alertMixin from 'shared/mixins/alertMixin';
 import { DEFAULT_REDIRECT_URL } from '../../constants';
 import VueHcaptcha from '@hcaptcha/vue-hcaptcha';
 import { isValidPassword } from 'shared/helpers/Validators';
+
+const CompanyEmailValidator = require('company-email-validator');
+
 export default {
   components: {
     VueHcaptcha,
@@ -136,6 +139,9 @@ export default {
       email: {
         required,
         email,
+        businessEmailValidator(value) {
+          return CompanyEmailValidator.isCompanyEmail(value);
+        },
       },
       password: {
         required,