Made docker stuff better

.dockerignore

@@ -0,0 +1,3 @@
+.git
+.vscode
+node_modules

Dockerfile

@@ -1,10 +1,12 @@
 FROM node:alpine
 
+RUN npm install --global yarn
+
 ADD dist/ /app/dist
 ADD public/ /app/public
-ADD package.json /app/
+ADD package.json yarn.lock /app/
 WORKDIR /app/
-RUN npm install --production
+RUN yarn install --production
 
 EXPOSE 8080
-ENTRYPOINT [ "npm", "run", "start" ]
+ENTRYPOINT [ "npm", "run", "start" ]