Copy generated css module to file with filename format CRA expects (#2360)

Author: djbeadle

package.json

@@ -128,9 +128,9 @@
     "build": "cross-env NODE_ENV=production run-p build:** && run-p css:**",
     "build-dev": "cross-env NODE_ENV=development run-p build:** && run-p css:**",
     "css:prod": "node-sass --output-style compressed src/stylesheets/datepicker.scss > dist/react-datepicker.min.css",
-    "css:modules:prod": "node-sass --output-style compressed src/stylesheets/datepicker-cssmodules.scss > dist/react-datepicker-cssmodules.min.css",
+    "css:modules:prod": "node-sass --output-style compressed src/stylesheets/datepicker-cssmodules.scss | tee dist/react-datepicker-cssmodules.min.css dist/react-datepicker-min.module.css",
     "css:dev": "node-sass --output-style expanded src/stylesheets/datepicker.scss > dist/react-datepicker.css",
-    "css:modules:dev": "node-sass --output-style expanded src/stylesheets/datepicker-cssmodules.scss > dist/react-datepicker-cssmodules.css",
+    "css:modules:dev": "node-sass --output-style expanded src/stylesheets/datepicker-cssmodules.scss | tee dist/react-datepicker-cssmodules.css dist/react-datepicker.module.css",
     "build:js": "rollup -c",
     "js:dev": "rollup -cw"
   },