User can see a list of saved trips

[sertmer]

As a logged in user
When I open the app
I want to see a list of my existing trips
So that I can decide which one to interact with

Subtasks:

• Launch GET trips on app load
• store in state
• iterate over the trips, forEach, create Trip component
• display on the 'dom'

Acceptance Criteria:

• All tests passing
• Happy path tested
• Sad path(s) tested
  • Sad path User can see a list of saved trips #1
  • Sad path User can see a list of saved trips #2
• Documentation is written