style(docker): move config file out of the config directory

Creates consistency between the docker-compose and docker setups

Author: Alexandria-Davis

docs/setup/server/installation/docker.md

@@ -25,7 +25,7 @@ docker run \
   --name spacebar-server \
   --network spacebar-network \
   -e DATABASE=postgres://postgres:postgres@spacebar-db/postgres \
-  -e CONFIG_PATH=config/config.json \
+  -e CONFIG_PATH=config.json \
   -v ./data:/data \
   ghcr.io/{{ repositories.server }}
 ```
@@ -38,7 +38,7 @@ docker run \
   --name spacebar-server \
   --network spacebar-network \
   -e DATABASE=postgres://postgres:postgres@spacebar-db/postgres \
-  -e CONFIG_PATH=config/config.json \
+  -e CONFIG_PATH=config.json \
   -v ./data:/data
   -p 3001:3001 \
   ghcr.io/{{ repositories.server }}