New Settings icon for Oreo

Description

This MR is intended to update some of the icons displayed in Settings.

Related issues

https://gitlab.e.foundation/e/roadmap/issues/9

Type of change

• New feature (non-breaking change which adds functionality)

Related MRs

https://gitlab.e.foundation/e/os/android_packages_apps_Settings/-/merge_requests/32

How has this been tested?

Open Settings in OS. New icons should be visible across the UI within Settings.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• [] I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules