Improve font sizes for collection page

[codemonkey800]

Lighthouse reports that the collection pages are using font sizes that are too small, resulting in a lower SEO score.

/collections

/collections/<symbol>

[codemonkey800]

extracting this to a separate issue from #898 since this has a design dependency. @Janeece we'll likely need your help to define different font sizes for all of the different fonts on the page. we may also need to update the design system to use these new font sizes since we want to make sure the design system passes SEO Lighthouse scores

[Janeece]

@codemonkey800 Here's the design recommendation we reviewed today: https://www.figma.com/file/UuSPthD5LmDWhCCXRr2O2d/Hub-SEO---Typography-Size?node-id=8%3A941&t=dwPacaw1TcmxEsNc-1

[Janeece]

@codemonkey800 just flagging that i previously missed including a type size in my recommendation. Added info for updating Site Title Narrow type size to the design file (linked in my previous comment).