chore: update .gitignore and package.json for improved development workflow

- Added .pnpm-store to .gitignore to prevent unnecessary files from being tracked.
- Reintroduced the "build" script in package.json and added a new "dev:docs" script for documentation development, enhancing the development workflow.

Author: endalk200

.gitignore

@@ -37,3 +37,4 @@ yarn-error.log*
 .DS_Store
 *.pem
 *.tsbuildinfo
+.pnpm-store/*

package.json

@@ -2,8 +2,9 @@
   "name": "better-webhook",
   "private": true,
   "scripts": {
-    "build": "turbo run build",
     "dev": "turbo run dev",
+    "dev:docs": "turbo run dev --filter=@better-webhook/docs",
+    "build": "turbo run build",
     "lint": "turbo run lint",
     "format:check": "prettier --check \"**/*.{ts,tsx,js,jsx,mdx,md}\" --cache",
     "format:write": "prettier --write \"**/*.{ts,tsx,js,jsx,mdx,md}\" --cache",