bug: ios, two finger swipe up gesture not working in standalone app/pwa

# Bug Report

**Ionic version:**

[ ] **4.x**
[x] **5.x**

**Current behavior:**
"Two-finger swipe up" when voiceover is on in iOS app, should "Speak the entire screen from the top" at the moment voiceover does not read anything from the top. voiceover gesture can be found [here](https://support.apple.com/en-in/guide/iphone/iph3e2e2281/ios)

**Expected behavior:**
"Two-finger swipe up" when voiceover is on should read everything on screen from the top in iOS.

**Steps to reproduce:**
1) open the ionic app in iOS device
2) turn on VoiceOver
3) and do a "Two-finger swipe up"

you'll notice that, Voice over does not read anything from the top. however one thing to notice is that, when "Two-finger swipe down" voice over should "Speak the entire screen from the selected item" is working.

Let me know if more information is needed to reproduce.

Thanks