fix!: drop all deprecations

[harlan-zw]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

⚠️ Breaking Changes

Removed rules config

The v4 of Nuxt Robots provided a backward compatibility rules config. As it was deprecated, this is no longer supported. If you're using rules, you should migrate to the groups config or use a robots.txt file.

export default defineNuxtConfig({
	robots: {
-    	rules: {},
+    	groups: {}
	}
})

Removed defineRobotMeta composable

This composable didn't do anything in v4 as the robots meta tag is enabled by default. If you'd like to control the robot meta tag rule, use the useRobotsRule() composable.

- defineRobotMeta(true)
+ useRobotsRule(true)

Removed RobotMeta component

This component was a simple wrapper for defineRobotMeta, you should use useRobotsRule() if you wish to control the robots rule.

Removed index, indexable config

When configuring robots using route rules or Nuxt Content you could control the robot's behavior by providing index or indexable rules.

These are no longer supported and you should use robots key.

export default defineNuxtConfig({
  routeRules: {
    // use the `index` shortcut for simple rules
-    '/secret/**': { index: false },
+    '/secret/**': { robots: false },
  }
})