Show MR overview in Gitlab

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Show MR overview in Gitlab",
  "version": "0.0.3",
  "manifest_version": 2,
  "description": "This minimalistic extension makes Gitlab always show merge request overview",
  "icons": {
    "16": "images/icon-16.png",
    "128": "images/icon-128.png"
  },
  "default_locale": "en",
  "permissions": [
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/index.js"
      ],
      "css": [
        "styles/index.css"
      ]
    }
  ]
}