Change dockerfile commands and add env variables in docker compose

Author: nicolelim02

backend/question-service/Dockerfile

@@ -10,4 +10,4 @@ COPY . .
 
 EXPOSE 3000
 
-CMD ["npm", "start"]
+CMD ["npm", "run", "dev"]

backend/user-service/Dockerfile

@@ -10,4 +10,4 @@ COPY . .
 
 EXPOSE 3001
 
-CMD ["npm", "start"]
+CMD ["npm", "run", "dev"]

docker-compose.yml

@@ -2,6 +2,8 @@ services:
   user-service:
     image: peerprep/user-service
     build: ./backend/user-service
+    environment:
+      - CHOKIDAR_USEPOLLING=true
     env_file: ./backend/user-service/.env
     ports:
       - 3001:3001
@@ -17,6 +19,8 @@ services:
   question-service:
     image: peerprep/question-service
     build: ./backend/question-service
+    environment:
+      - CHOKIDAR_USEPOLLING=true
     env_file: ./backend/question-service/.env
     ports:
       - 3000:3000
@@ -33,6 +37,8 @@ services:
   frontend:
     image: peerprep/frontend
     build: ./frontend
+    environment:
+      - CHOKIDAR_USEPOLLING=true
     ports:
       - 5173:5173
     depends_on: