Zoom with font-size from dev tools on Firefox

[hwillson]

Migrated from: #252

Thank you for publishing this very helpful package.

When I zoom Firefox Dev tools' font size, the apollo pane does not zoom in with me

Repro:

1. Side-load the dev tools into firefox accd to Firefox support #73 (comment)
2. load up a site with apollo client hooked in to dev tools
3. open dev tools and switch to apollo tab
4. zoom with cmd++

Result: FF Dev tools font size increases (i.e. the tab bar) but Apollo dev tools font-size does not:

I did not have this same result on Chrome, where the font size scales with the window

[benatshippabo]

I like this idea! Firefox doesn't get as much love as Chrome these days. Although I think this may be a Firefox issue, since I have the same issues with any third party devtool on Firefox

[alessbell]

Confirming I can still reproduce this.