Update docker-compose for runtime configs. Remove all config files & replace with env variables

docker/docker-compose.yml

@@ -16,10 +16,14 @@ services:
   dspace-angular:
     container_name: dspace-angular
     environment:
-      DSPACE_HOST: dspace-angular
-      DSPACE_NAMESPACE: /
-      DSPACE_PORT: '4000'
-      DSPACE_SSL: "false"
+      DSPACE_UI_SSL: false
+      DSPACE_UI_HOST: dspace-angular
+      DSPACE_UI_PORT: '4000'
+      DSPACE_UI_NAMESPACE: /
+      DSPACE_REST_SSL: false
+      DSPACE_REST_HOST: localhost
+      DSPACE_REST_PORT: 8080
+      DSPACE_REST_NAMESPACE: /server
     image: dspace/dspace-angular:dspace-7_x
     build:
       context: ..
@@ -33,5 +37,3 @@ services:
       target: 9876
     stdin_open: true
     tty: true
-    volumes:
-    - ./environment.dev.ts:/app/src/environments/environment.dev.ts