Implement service page template design updates

[cthibaultatx]

@ifsimicoded @mateoclarke there's some overlap in updating type styles and sizes as well as components and modules between this issue and the homepage issue

Google drive sketch file: https://drive.google.com/file/d/1wtiU9LqpvU2KTu362bCPMfS7tfYgjyuf/view?usp=sharing

[amenity]

Will this change address the inaccurate/missing contact info? If not, let's open a content team issue to update it. Currently we have 311's phone number and we previously had placeholder text, but it looks 👌 in the comps.

[ifsimicoded]

Duplicates cityofaustin/techstack#181