[4pt] Fetch missions - Fetch data(@roseokpe) #55

[Roseokpe]

@Roseokpe

1. Fetch data from the Missions endpoint (https://api.spacexdata.com/v3/missions) when a user navigates to the Missions section.

Once the data are fetched, dispatch an action to store the selected data in Redux store:

mission_id
mission_name
description
NOTE: Make sure you only dispatch those actions once and do not add data to store on every re-render (i.e. when changing views / using navigation).