Feature: Build Rust during build script AND install

backend/npm_package.sh

@@ -1,14 +1,17 @@
 #/bin/sh
 set -e
 
+# Remove previous dist folder
+rm -rf dist
+# Build new dist folder
 npm run build
 # Remove previous package folder
 rm -rf package
 # Move JS and deps
 mv dist package
-mv node_modules package
+cp -R node_modules package
 # Remove symlink for rust-gbt and insert real folder
 rm package/node_modules/rust-gbt
-mv rust-gbt package/node_modules
+cp -R rust-gbt package/node_modules
 # Clean up deps
 npm run package-rm-build-deps