revert again

Author: RChandler234

Dockerfile

@@ -6,12 +6,7 @@ COPY yarn.lock .
 COPY tsconfig.build.json .
 COPY ./src/backend/package.json src/backend/
 COPY ./src/shared/package.json src/shared/
-RUN cd src/backend/
 RUN yarn install
-RUN cd ../../
-RUN cd src/shared/
-RUN yarn install
-RUN cd ../../
 COPY ./src/backend src/backend
 COPY ./src/shared src/shared
 RUN yarn prisma:generate