try fix yarn install

Author: critesjosh

.devcontainer/Dockerfile

@@ -16,4 +16,4 @@ RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.5/install.sh | b
 # Add node and npm to path
 ENV PATH="${NVM_DIR}/versions/node/v${NODE_VERSION}/bin:${PATH}"
 RUN npm i -g yarn
-RUN yarn
+RUN cd ~/workspace && yarn