fix(navigation): keep the click block up longer if the keyboard is open

keep the click block up longer if the keyboard is open

closes  #6540

src/components/nav/nav-controller.ts

@@ -1178,7 +1178,12 @@ export class NavController extends Ion {
         transAnimation.duration(0);
       }
 
-      let duration = transAnimation.getDuration();
+      let KEYBOARD_DURATION_PADDING = 0;
+      if ( this._keyboard.isOpen() ){
+        // add 700ms to the click block just to be sure the keyboard is closed
+        KEYBOARD_DURATION_PADDING = 700;
+      }
+      let duration = transAnimation.getDuration() + KEYBOARD_DURATION_PADDING;
       let enableApp = (duration < 64);
       // block any clicks during the transition and provide a
       // fallback to remove the clickblock if something goes wrong