Consider increasing the question metadata font-size

[emilghittasv]

Describe the bug
The current font-size for the question metadata displayed inside the community forums (e.g: https://support.allizom.org/en-US/questions/all?show=all) is .75 rem.

We should consider increasing the font-size to at least .875rem

[akatsoulas]

PR mozilla/kitsune#7384

[emilghittasv]

I can confirm that this issue is verified fixed in stage.

Moving this ticket inside the release column.