fix: do not focus the field on helper element click (#197)

cherry pick of vaadin/web-components#2232 for v14

add missing test

Fixes vaadin/flow-components#955

src/vaadin-radio-group.html

@@ -51,7 +51,6 @@
       </div>
 
       <div part="helper-text"
-        on-click="focus"
         id="[[_helperTextId]]"
         aria-live="assertive"
         aria-hidden$="[[_getHelperTextAriaHidden(helperText, _helperTextId, _hasSlottedHelper)]]">

test/vaadin-radio-group.html

@@ -492,6 +492,17 @@
 
           expect(radioButtonGroupWithSlottedHelper.hasAttribute('has-helper')).to.be.false;
         });
+
+        it('should not get focus after helper click', () => {
+          const group = fixture('default-with-slotted-helper');
+          const spy = sinon.spy(group, 'focus');
+          const helper = group.querySelector('[slot="helper"]');
+
+          helper.click();
+
+          expect(spy.called).to.be.false;
+        });
+
       });
 
       describe('RTL mode', () => {