Update Render.com config

Default database instance is _not_ free... rude.

babybuddy/settings/render.py

@@ -11,9 +11,4 @@ if RENDER_EXTERNAL_HOSTNAME:
 # Database
 # https://docs.djangoproject.com/en/4.0/ref/settings/#databases
 
-DATABASES = {
-    "default": dj_database_url.config(
-        default="postgresql://postgres:postgres@localhost:5432/babybuddy",
-        conn_max_age=600,
-    )
-}
+DATABASES = {"default": dj_database_url.config(conn_max_age=600)}

render.yaml

@@ -1,18 +1,17 @@
 databases:
-  - name: babybuddy
-    databaseName: babybuddy
-    user: babybuddy
+  - name: db
+    plan: free
 
 services:
   - type: web
-    name: babybuddy
+    name: app
     env: python
     buildCommand: "./.render.com/build.sh"
     startCommand: "gunicorn babybuddy.wsgi:application"
     envVars:
       - key: DATABASE_URL
         fromDatabase:
-          name: babybuddy
+          name: db
           property: connectionString
       - key: DJANGO_SETTINGS_MODULE
         value: babybuddy.settings.render