Fix CodiMD build

roles/codimd/handlers/main.yml

@@ -1,7 +1,8 @@
 ---
 # Build front-end bundle
+# This can take very long and requires > 2GB of RAM
 - name: Build front-end for CodiMD
-  command: yarn run build
+  command: NODE_ENV="production" yarn run build
   args:
     chdir: /var/local/codimd/codimd
   become: true

roles/codimd/tasks/main.yml

@@ -17,7 +17,7 @@
 
 # Setup dependencies and configs
 - name: Install CodiMD depedencies
-  command: bin/setup
+  command: NODE_ENV="production" bin/setup
   args:
     chdir: /var/local/codimd/codimd
   become: true