Update project settings analytics section styles

What does this MR do and why?

Followup from !117804 (comment 1390566642)

Update the analytics section of the project settings to match latest designs.

Screenshots or screen recordings

before	after

How to set up and validate locally

Note: This feature has a lot of setup steps. If you need help please ask me or I can step through these during a call with you.

1. Follow these instructions to setup Product Analytics in GDK.
2. Create a new project.
3. View the project -> Settings -> General
4. Verify the "Analytics" section matches the designs (no .sub-section filled background colour)

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #411532 (closed)