Always Show Slack Workspace Switcher Sidebar

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Always Show Slack Workspace Switcher Sidebar",
  "version": "1.0",
  "description": "This extension spoofs the user agent to trick Slack into showing its workspace switcher in a browser.",
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "*://app.slack.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "*.js"
      ],
      "matches": [
        "*://app.slack.com/*"
      ]
    }
  ]
}