fix: webkit package not building in ci (#4)

Author: BossSloth

typescript-packages/browser/package.json

@@ -9,6 +9,7 @@
 	"license": "LGPL-2.1-only",
 	"scripts": {
 		"build": "shx rm -rf ./build && tsc -b",
+		"prepare": "npm run build",
 		"dev-link": "npm run build && npm link"
 	},
 	"files": [