Revert "Update docker-compose.ci.yml to use the correct folder for building"

This reverts commit 6ea99506

docker-compose.ci.yml

 version: "3"
 services:
   web:
-    build: ./social_network
+    build: ./the_social_network
     image: ${REGISTRY}/feger/the-social-network/web:latest
     volumes:
-      - ./social_network:/code
+      - ./the_social_network:/code
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