fix package json not copied to container

.devcontainer/Dockerfile

@@ -23,17 +23,19 @@ RUN apt-get update \
     && rm -rf /var/lib/apt/lists/*
 
 ENV HOME /home/$USERNAME
-USER $USERNAME
-WORKDIR $HOME
-
-EXPOSE 8080
-
-# install dependencies
-RUN yarn global add @vue/cli
-RUN yarn install
 
 WORKDIR $HOME/frequi
 
+COPY ./package.json .
+
+# install dependencies
+RUN yarn install
+RUN yarn global add @vue/cli
+
+USER $USERNAME
+
+EXPOSE 8080
+
 FROM dev as vscode
 
 WORKDIR $HOME

.devcontainer/docker-compose.yml

@@ -2,11 +2,13 @@ version: '3.4'
 services:
   web:
     build: 
-      context: .
+      context: ..
       target: dev
+      dockerfile: .devcontainer/Dockerfile
     image: freqtradeorg/frequi:dev
     user: dev
     volumes:
+      - ../node_modules:/home/dev/frequi/node_modules
       - ../:/home/dev/frequi
     command: /bin/sh -c "while sleep 1000; do :; done"
     networks: