FBP Go: FFMC scale at the bottom.

**As a** *(User Type/Persona)* **I want** *(Feature/enhancement)* **So That** *(Value, why is this wanted, what is the user trying to accomplish)*

**Additional Context**
- What we mean here, is to have a row with numbers below a slider, to make it easy to understand what value you have selected.
- Initial investigations found that there's no easy built in way for the slider to have a scale below it.

**Acceptance Criteria**
- [ ] Given (Context), When (action carried out), Then (expected outcome)
- [ ] Given (Context), When (action carried out), Then (expected outcome)

**Definition of Done**
- [ ] Ready to Demo in Sprint Review
- [ ] Does what I have made have appropriate test coverage?
- [ ] Documentation and/or scientific documentation exists and can be found
- [ ] Peer Reviewed by 2 people on the team
- [ ] Manual testing of all PRs in Dev and Prod
- [ ] Merged

Start by locating the FBP Go FFMC slider in the frontend and reading the surrounding component and tests, if present. The work is done when a row of numbers appears below the slider and makes the selected value easy to understand, with appropriate test coverage and documentation.

Written by the indexing model from the issue text.