feat: add package script

package.json

@@ -5,7 +5,9 @@
   "main": "index.js",
   "scripts": {
     "build": "webpack",
-    "watch": "webpack --watch"
+    "watch": "webpack --watch",
+    "package": "ts-node ./script/package.ts",
+    "version": "npm run build && git add ."
   },
   "repository": {
     "type": "git",
@@ -33,4 +35,4 @@
     "webpack": "^5.91.0",
     "webpack-cli": "^5.1.4"
   }
-}
+}

script/package.ts

@@ -0,0 +1,13 @@
+import { execSync } from "child_process";
+
+console.log("Building...");
+execSync("npm run build");
+
+console.log("Packaging for Chrome...");
+process.chdir("dist/chrome");
+execSync(`npx web-ext build --artifacts-dir "../../web-ext-artifacts/manifestV2"`);
+
+console.log("Packaging for Firefox...");
+process.chdir("../firefox");
+execSync(`npx web-ext build --artifacts-dir "../../web-ext-artifacts/manifestV3"`);
+console.log("Done.");