Examine source code of nikice

{
  "manifest_version": 3,
  "name": "nikice",
  "version": "2.0.0",
  "description": "AI LeetCode Solver & Auto-Typer (Ctrl+Space) — powered by nikice",
  "permissions": [
    "activeTab",
    "storage",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@nikice.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "nikice (Ctrl+Space)",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "commands": {
    "instant_solve_and_type": {
      "suggested_key": {
        "default": "Ctrl+Space",
        "mac": "Command+Space",
        "windows": "Ctrl+Space"
      },
      "description": "Solve problem on screen and auto-type into code editor"
    },
    "instant_solve_no_type": {
      "suggested_key": {
        "default": "Ctrl+Shift+Space",
        "mac": "Command+Shift+Space",
        "windows": "Ctrl+Shift+Space"
      },
      "description": "Solve problem on screen and show answer (no auto-type)"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}