Fonts in inline report

[jeromedockes]

partly addresses #1037

• don't set the font when the report is inserted in another page
• reduce monspaced text size
• reduce banner font size

can be discussed in another pr:

• scale report according to parent element's font size
• reduce the font size further

[jeromedockes]

here is a screenshot in vscode

[GaelVaroquaux]

That's already a great improvement.

I was about to merge, but maybe a changelog entry? I suspect that this is a change that people want to know about

[jeromedockes]

thanks! I added the changelog entry

[jeromedockes]

now in vscode and the sphinx documentation the reports use the same font at the same size as the rest of the page.

in a jupyter notebook, by default in most browsers the text will be 15px and the report will be 16px.

if a user changes the default font size in their browser settings (eg to accomodate their eyesight), the difference will be bigger because the report will scale accordingly and the notebook text won't and will stay fixed at 15px. But I would argue the correct behavior is the report's in this case

[GaelVaroquaux]

This is a net improvement. Merging. Thanks!!