Fixes/remove ie fallbacks

[MKaHead]

Remove ie11 fallbacks.

I have to say that footer css is so strange. I checked if kinda working seems okay.

Merge Checklist:

• [x] Code selfreview has been performed (Best Practices).
• [x] Tests are sufficient.
• [x] Documentation is up to date.
• [x] Changelog is up to date.
• [x] Typescript typings for properties are up to date.
• [x] Designers approved changes or no approval needed.
• [x] Dependencies to other components still work.