Remove agenda tab table spacing on mobile

Created by: flora8984461

Part of https://github.com/EclipseFdn/hugo-solstice-theme/issues/188

For Hugo theme, the example agenda does not have long titles(And the current font-size is already small-14px), I'm thinking of adding font-size small when mobile view to events page separately (https://github.com/EclipseFdn/events.eclipse.org/pull/160).

I'm not adding the font size in .eclipsefdn-agenda { table { } } in solstice-assets is because it will be different due to different situations in the specific sites. On Hugo theme and Osdforum, 14px would be good, while for events, it needs to be 12px.

wdyt?

Signed-off-by: Yi Liu yi.liu@eclipse-foundation.org