Implement new design with text buttons

[SmoothMaverick]

Implement the new design a list of buttons instead of the radial button for now.

• Update colors and styling.
• Replaces voice commands with text buttons.
• Add ResultsScreen view to show output from the backend API.
• Remove commands that are not implemented.
• Add unit tests for ResultsScreen and HomePage views
• Run unit tests automatically with github actions

[SmoothMaverick]

Added back face detector

[SmoothMaverick]