Load all goals from user on loading journal page

[Oliversw]

Backend route and database query for all goals from the logged in user. Saves in context and populates the journal page with the returned goals. This means that @SalwaMugh, you should be able to populate the dashboard goals with items from context.state.goalData 🙂

Bugs/todo later:

• still currently depends on a hard coded user id, stored in the context
• eventually we can also separate the api call into a separate file that can be called on both the journal page and the dashboard page

[Oliversw]

Closing because I have included it in a more recent pull request