Examine source code of LockedIn - Remove YouTube Shorts & Distractions

{
  "manifest_version": 3,
  "name": "LockedIn",
  "version": "1.2.1",
  "description": "Stop doomscrolling. Hide YouTube Shorts, feeds, and comments. Block the algorithm and stay LockedIn on what matters.",
  "icons": {
    "48": "assets/icons/icon48.png"
  },
  "permissions": [
    "storage",
    "alarms",
    "declarativeNetRequest"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "host_permissions": [
    "*://www.youtube.com/*",
    "*://m.youtube.com/*",
    "*://youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://m.youtube.com/*",
        "*://youtube.com/*"
      ],
      "js": [
        "content/shared/selectors.js",
        "content/shared/settings.js",
        "content/shared/dom.js",
        "content/homepage.js",
        "content/watch.js",
        "content/search.js",
        "content/shorts.js",
        "content/subscriptions.js",
        "content/sidebar.js",
        "content/autoplay.js",
        "content/index.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": "assets/icons/icon48.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/library/*.json",
        "content/playlist-blocker-inject.js"
      ],
      "matches": [
        "*://www.youtube.com/*",
        "*://m.youtube.com/*",
        "*://youtube.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "kartik@lockedin.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}