Examine source code of Slop Blocker

{
  "manifest_version": 3,
  "name": "Slop Blocker",
  "description": "Local-first browser extension that filters bots, AI-generated replies, and keyword-matched content on Twitter/X.",
  "version": "0.1.0",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "http://localhost/*",
    "http://127.0.0.1/*",
    "https://api.openai.com/*",
    "https://api.anthropic.com/*",
    "https://api.deepseek.com/*",
    "https://openrouter.ai/*",
    "https://api.groq.com/*",
    "https://api.together.xyz/*",
    "https://api.mistral.ai/*"
  ],
  "commands": {
    "toggle-filter": {
      "suggested_key": {
        "default": "Ctrl+Shift+X",
        "mac": "Command+Shift+X"
      },
      "description": "Toggle Slop Blocker on/off"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "slop-blocker@mx-92x",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Slop Blocker",
    "default_popup": "popup.html"
  },
  "sidebar_action": {
    "default_panel": "sidepanel.html",
    "default_title": "Slop Blocker"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitter.com/*",
        "*://*.x.com/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}