Update fitbit clock face UI

[nickdotreid]

Update fitbit clock face UI to:

When the fitbit clock face has a pin and is authorized, it will show the default state. The default state shows:

• Current time
• Current date
• Current daily step count
• Current battery level
• Status icon

The status icon has 3 states:

• Running (green) When the application is running successfully

• Loading (blue) Application is waiting for another event to complete

• Error (red) The application has experienced an error

• [x] Show current daily step count

• [x] Put status icon in lower right corner

• [ ] When companion app connection lost, clock face app will show error status, with status message "Connection lost __ minutes ago"

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Since Nick might not be working on it now, we have to set a prerequisite.

Prerequisite

• [ ] #260

[jup014]

added a prerequisite