chore: use cross-env

Author: aminya

package.json

@@ -16,9 +16,9 @@
     "test-debug": "npm run debug && atom --test spec",
     "test": "npm run build && atom --test spec",
     "clean": "shx rm -rf dist",
-    "debug": "npm run clean && shx cp -r lib dist && env NODE_ENV=development env BABEL_ENV=development babel dist --out-dir dist",
-    "dev": "npm run clean && env NODE_ENV=development env BABEL_ENV=production rollup -c -w",
-    "build": "npm run clean && env NODE_ENV=production env BABEL_ENV=production rollup -c",
+    "debug": "npm run clean && shx cp -r lib dist && cross-env NODE_ENV=development cross-env BABEL_ENV=development babel dist --out-dir dist",
+    "dev": "npm run clean && cross-env NODE_ENV=development cross-env BABEL_ENV=production rollup -c -w",
+    "build": "npm run clean && cross-env NODE_ENV=production cross-env BABEL_ENV=production rollup -c",
     "build-commit": "build-commit -o dist",
     "bump": "ncu -u",
     "prepare": "npm run build"
@@ -57,6 +57,7 @@
     "rollup": "^2.23.0",
     "rollup-plugin-atomic": "^1.1.0",
     "shx": "^0.3.2",
+    "cross-env": "latest",
     "@babel/cli": "7.10.5",
     "@babel/core": "7.10.5",
     "babel-preset-atomic": "latest",