Examine source code of job-sourcerer

{
  "manifest_version": 2,
  "name": "job-sourcerer",
  "description": "A centralized job application platform.",
  "version": "1.8.0",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage",
    "*://*.joinhandshake.com/*"
  ],
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4ZumQ+iYBWd2HUHu4YCKoEfYXFfUPsKjaWaRSbzQ6b0YI8KlMMu2OE/mNYgdUesS1YzhMU9F77whMAQjhonXdLDoOZaocvu5p4c+6YBP0s7+v5tIllEZw4mNPeydoJCedCG6KBDmLfMJ8LcTLaLeBMoPpW2DCDTU6tgZNHnflrwOoymOO5VLiV3KMSyJ2P4KbYLpCnFecbWBehFBjQkdtcA671Wj2JwmKlc0vQlriPgIWHYb9UNAo2hddsD2wq4udQzfgzA1FV/50fCk/XzKqe43z0qILYpMkM6ZpqUfb/0br+C3i7jWEcTCm0+/XpGenhQTbyP1OschG08vbINj1wIDAQAB",
  "content_security_policy": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{9ae23dfb-cd27-4d50-8186-58806a97f84f}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Job Sourcerer",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.joinhandshake.com/*"
      ],
      "js": [
        "content-scripts/handshake.js"
      ]
    },
    {
      "matches": [
        "*://*.linkedin.com/*"
      ],
      "all_frames": false,
      "js": [
        "content-scripts/linkedin.js"
      ]
    }
  ]
}