Move the copy of tsconfig to after install dependencies in the Dockerfile to reduce the chance of rebuilds

Dockerfile

@@ -49,9 +49,12 @@ RUN echo "#!/bin/sh" >> /bin/lerna && \
 	chmod +x /bin/lerna
 
 # Copy over Lerna stuff
-COPY lerna.json package.json tsconfig*.json ./
+COPY lerna.json package.json ./
 RUN yarn install
 
+# Copy TS configs
+COPY tsconfig*.json ./
+
 # Symlink the requested service to /app
 RUN ln -s /opt/app/services/${SERVICE} /app
 WORKDIR /app