Table Column Popin on iOS Safari

[MarcusNotheis]

Describe the bug
A clear and concise description of what the bug is.
The Column Popin feature seems to be a bit broken on iOS Safari.

To reproduce
Steps to reproduce the behavior:

1. Create a Table with a couple of columns and set demand-popin=true and a min-width on all columns except the first one
2. Open the page on a mobile Safari.

Isolated example
Please provide an isolated example if possibile, by forking CodeSandbox
https://codesandbox.io/s/ui5-webcomponents-7zpbv

Expected behavior
A clear and concise description of what you expected to happen.
Popin Feature should work the same way as on desktop.

Screenshots
If applicable, add screenshots to help explain your problem.
I would expect it to look like (emulated iPhone X in Chrome):

Actually it looks like this on an iPhone:

Context

• UI5 Web Components version: 12.0.0
• OS/Platform: iOS 12.3.1
• Browser (if relevant): Mobile Safari 12.1.1

Affected components (if known)

• Table
• TableColumn

Additional Information
I already had a quick chat with @MapTo0, it looks like this is somehow connected to the Resize Handler implementation.
When rotating the phone and then turn it back, the issue seems to be fixed.