Duolingo Unicode Normalizer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Duolingo Unicode Normalizer",
  "version": "1.5",
  "description": "Automatically normalizes Duolingo answers and dictionary searches.",
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "https://*.duolingo.com/"
  ],
  "options_ui": {
    "page": "popup/options.html",
    "open_in_tab": false
  },
  "background": {
    "persistent": true,
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.duolingo.com/*"
      ],
      "js": [
        "src/options.js",
        "src/content.js"
      ]
    }
  ],
  "icons": {
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "manifest_version": 2
}