GCDS update: typography

This is a bigger card, I can detail the typography for desktop and mobile. [Shout-out to Dave for doing the initial update in 2023 ](https://forms-staging.cdssandbox.xyz/en/admin/typography)

Headings - Lato
Base fonts - Noto sans

Colour for all: #333333

**HEADINGS**

H1 - Lato, Bold, size: 41 px, line-height: 48 px
H2 - Lato, Bold, size: 39 px, line-height: 48 px
H3 - Lato, Bold, size: 29 px, line-height: 40 px
H4 - Lato, Bold, size: 27 px, line-height: 36 px
H5 - Lato, Bold, size: 24 px, line-height: 32 px
H6 - Lato, Bold, size: 22 px, line-height: 32 px

**BASE**
Text - Noto sans, Regular, 20 px, line-height: 32
Text (smaller line height) - Noto sans, Regular, 20 px, line-height: 28
Text small - Noto sans, Regular, 18 px, line-height: 28px