Update dep styling @mui/styles with @mui/system

### Overview

We need to update all `@mui/styles` implementations to use `@mui/system` for the code health of the application.

### More Info (optional)

Link to deprecated `@mui/styles` docs [here](https://mui.com/system/styles/basics/)
Link to `@mui/system` docs [here](https://mui.com/system/styles/basics/)

### Action Items

- [ ] Locate the implementation of `@mui/styles`
- [ ] Update styling to use `@mui/system`

### Resources/Instructions

[Replace this text - Provide these resources here if exist. Provide screenshot only if the issue has visual
changes on the site, do not post screenshots of codebase]

- Figma design file link
- Related previous ticket
Screenshot before proposed changes

[insert screenshot here]

Screenshot after proposed changes

[insert screenshot here]