chore: update database ENV keys

site/.env.example

@@ -2,7 +2,12 @@ NODE_ENV=
 
 PORT=
 BASEURL=
-DATABASE_URL=
 GITHUB_CLIENT_ID=
 GITHUB_CLIENT_SECRET=
-MAPBOX_ACCESS_TOKEN=
+MAPBOX_ACCESS_TOKEN=
+
+PGHOST=hostname
+PGPORT=port
+PGUSER=username
+PGPASSWORD=password
+PGDATABASE=database_name

site/src/utils/db.js

@@ -1,8 +1,7 @@
 import { Pool } from 'pg';
 
-export const DB = new Pool({
-	connectionString: process.env.DATABASE_URL
-});
+// Uses `PG*` ENV vars
+export const DB = new Pool();
 
 export function query(text, values=[]) {
 	return DB.query(text, values).then(r => r.rows);