Differentiate the display of Automated and Manual boluses

[bjorkert]

SMB's are now displayed with a light blue dot.

[marionbarker]

Tested with Trio (left) and Loop (right) examples. This looks good to me. Merging to dev.

In both cases:

• there are carbs in the past and in the future
• there are both manual and automatic boluses
• the indicators no longer fade over time