UXD - Design System Updates: Request Type Icons

### Dependency
- [ ] all tickets (both created and to-be-created within "Blank Map Pre-Work, Data Pipeline Setup" in epic: https://github.com/hackforla/311-data/issues/1890

### Overview
We need to update 311 request types to be icons due to accessibility concerns with colors. As we transition the map to have a lighter gray monochromatic background, including icons for each request type could be worth exploring to also aid with improving accessibility.

### Action Items
- [x] Discuss with design team what their thoughts are of this
- [x] Reference 311-SF website & Google for icon ideas
- [x] Assign designers to ticket
- [x] Designers can assign request types to icons (material design system will be a good resource)
- [x] Feedback/Iterations
- [x] Approval: Icon Set
- [x] Mockup a high fidelity screen including the search/filters + map to include the new icon set and to show populated data (as icons) on the map during user search
- [ ] Rounds of feedback
- [ ] Approval: Mockup