Multi-touch swipe causes main swipe view to get stuck on wasm

[blammit]

Tested on Mac Desktop and Web Assembly Single Threaded (running in a browser on a Mac).

Launch the application and scroll the main view through its sections using a two-finger swipe left/right gesture rather than a single finger swipe gesture.

This shall cause the view to get stuck mid-frame and the tab buttons will no longer change the view when pressed.