Change Units to Mbit

[dragon2611]

Change speedtest dashboard to show MegaBits as Value is in Megabits but dashboard was set to Bytes.

Related Issue

https://github.com/danopstech/starlink/issues/11

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• [x] I have read the Code of Conduct
• [ ] I have updated the documentation accordingly.
• [ ] All commits are GPG signed