chore: Improve postinstall script configuration

In some environements (in this case `pkg` built standalones that contain `npm` bundled) the starting word seeems stripped from `postinstall` script. Adding a blank space in front fixes that.

Author: medikoo

package.json

@@ -112,7 +112,7 @@
 		"coverage": "nyc npm test",
 		"lint": "eslint --ignore-path=.gitignore .",
 		"lint:updated": "pipe-git-updated --base=main --ext=js -- eslint --ignore-pattern '!*'",
-		"postinstall": "node -e \"try{require('./_postinstall')}catch(e){}\"",
+		"postinstall": " node -e \"try{require('./_postinstall')}catch(e){}\"",
 		"prettier-check": "prettier -c --ignore-path .gitignore \"**/*.{css,html,js,json,md,yaml,yml}\"",
 		"prettier-check:updated": "pipe-git-updated --base=main --ext=css --ext=html --ext=js --ext=json --ext=md --ext=yaml --ext=yml -- prettier -c",
 		"prettify": "prettier --write --ignore-path .gitignore \"**/*.{css,html,js,json,md,yaml,yml}\"",