Fetch data from DB

[448-OG]

Currently data is being fetched from static information instead from the DB ie.

RustaceansKenyaWebapp/backend/src/routes/homepage.rs

Line 18 in 24fbafd

let data = HomePageData {

We need to fetch that data from the DB.

1. We need a route to push new data or updates
2. We need a route to get that data from the DB

Both routes return JSON

[448-OG]

@nyambura00