Raw data link should close open raw data table

[ouvry-ems]

Describe the problem to be solved

Hi, I'm following new users trying Grist and most of the time when they're using Raw Data panel they manage to open a raw data table but struggle to close it. Even though you can close it with the cross, by clicking outside the popup or pressing Escape, most people are actually trying to come back by clicking on the "Raw data" link. That's easy to understand because that's how they came on the Raw Data "homepage" and therefore how they think of coming back there.

Describe the solution you would like

I suggest that an additional way of closing a Raw Data popup would be to click on the "Raw Data" link.