KEYCLOAK-2031: Input validation in OTP Policy page fix, test

forms/common-themes/src/main/resources/theme/base/admin/resources/partials/otp-policy.html

@@ -54,7 +54,7 @@
         <div class="form-group" data-ng-show="realm.otpPolicyType == 'hotp'">
             <label class="col-md-2 control-label" for="counter">Initial Counter</label>
             <div class="col-md-6">
-                <input class="form-control" type="text" id="counter" name="counter" data-ng-model="realm.otpPolicyInitialCounter" autofocus>
+                <input class="form-control" type="number" required min="1" max="120" id="counter" name="counter" data-ng-model="realm.otpPolicyInitialCounter" autofocus>
             </div>
             <kc-tooltip>What should the initial counter value be?</kc-tooltip>
         </div>