fix: relocate button tooltip to workaround nvda click issue (#10405)

Author: tomivirkki

packages/button/src/vaadin-button.js

@@ -99,8 +99,9 @@ class Button extends ButtonMixin(ElementMixin(ThemableMixin(PolylitMixin(LumoInj
         <span part="suffix" aria-hidden="true">
           <slot name="suffix"></slot>
         </span>
+
+        <slot name="tooltip"></slot>
       </div>
-      <slot name="tooltip"></slot>
     `;
   }
 

packages/button/test/dom/__snapshots__/button.test.snap.js

@@ -97,9 +97,9 @@ snapshots["vaadin-button shadow default"] =
     <slot name="suffix">
     </slot>
   </span>
+  <slot name="tooltip">
+  </slot>
 </div>
-<slot name="tooltip">
-</slot>
 `;
 /* end snapshot vaadin-button shadow default */