[Typography foundations] [Migration] Option list

[nayeobkim]

Figma

• Add more space above section titles when there are multiple sections. Update top padding above section title to 16px instead of 8px
• Update section title color to text-default instead of subdued
• add divider above section title (let me know if this is out of scope, we can leave off the divider if so - I basically did the same thing as action list here)

Before	After

[laurkim]

Commit with updates