[Lens] Table rendered with horizontal scrollbar on dashboard

[flash1293]

Kibana version: master

Describe the bug: A Lens table panel is always rendered with horizontal scrollbar on dashboard, even if it's not necessary

Steps to reproduce:

1. Go to dashboard
2. Add Lens panel with table
3. Save and return
4. Has a horizontal scrollbar

Expected behavior:
Should not have a scrollbar

Screenshots (if relevant):

Errors in browser console (if relevant):

Provide logs and/or server output (if relevant):

Any additional context:
I checked 7.13, seems like it doesn't have this problem.

It doesn't happen in the editor, only on the dashboard.
@mbondyra I remember you fixed an issue similar to this a while back, maybe this is related?

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[mbondyra]

Looks like it's not related to any of this. I think the function that calculates the width on resize is not being run at the start, I'll investigate a bit more.

[mbondyra]

Here's a linked issue I submitted to EUI:
elastic/eui#4848