fix(gestures): change itemSliding gesture priority

Closes #15608

core/src/components/item-sliding/item-sliding.tsx

@@ -73,7 +73,7 @@ export class ItemSliding implements ComponentInterface {
       el: this.el,
       queue: this.queue,
       gestureName: 'item-swipe',
-      gesturePriority: 20,
+      gesturePriority: 100,
       threshold: 5,
       canStart: () => this.canStart(),
       onStart: () => this.onStart(),

core/src/components/nav/test/basic/index.html

@@ -49,6 +49,17 @@
                 <ion-button class="next">Go to Page Two</ion-button>
               </ion-nav-push>
             </div>
+
+        <ion-list>
+          <ion-item-sliding>
+            <ion-item>Some item</ion-item>
+            <ion-item-options>
+              <ion-item-option>
+                Some options
+              </ion-item-option>
+            </ion-item-options>
+          </ion-item-sliding>
+        </ion-list>
           </ion-content>
         `;
       }