Turn off read receipts for Google Chat

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Turn off read receipts for Google Chat",
  "description": "Easily disable/enable read receipts in Google Chat (from the Gmail page) using a toggle button",
  "version": "1.2",
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*",
        "https://chat.google.com/*"
      ],
      "js": [
        "dist/main.js"
      ],
      "all_frames": true,
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "dist/event-hub-chat-menu.js",
        "dist/event-hub-mail.js"
      ],
      "matches": [
        "https://mail.google.com/*",
        "https://chat.google.com/*"
      ]
    }
  ],
  "permissions": [],
  "action": {
    "default_icon": {
      "16": "/images/unseen-logo.png",
      "32": "/images/unseen-logo.png",
      "48": "/images/unseen-logo.png",
      "128": "/images/unseen-logo.png"
    }
  },
  "icons": {
    "16": "/images/unseen-logo.png",
    "32": "/images/unseen-logo.png",
    "48": "/images/unseen-logo.png",
    "128": "/images/unseen-logo.png"
  }
}