Refactor plugin management system

- Updated PluginLoader to utilize the new plugin marketplace manager for loading and managing plugins.
- Simplified the plugin loading process by removing unnecessary state management and directly integrating with the plugin marketplace.
- Enhanced error handling during plugin installation and uninstallation processes.
- Removed legacy code related to Electron-specific plugin handling, streamlining the codebase for web compatibility.
- Updated Plugins component to fetch marketplace plugins and installed plugins using the new plugin marketplace manager.
- Refactored types related to plugins to import from the new plugin manager module, ensuring consistency and reducing redundancy.
- Removed unused calling configuration from client settings and adjusted related types accordingly.
- Cleaned up room state events by removing references to LiveKit service URLs, aligning with the updated architecture.

package.json

@@ -24,6 +24,7 @@
     "@atlaskit/pragmatic-drag-and-drop-auto-scroll": "1.3.0",
     "@atlaskit/pragmatic-drag-and-drop-hitbox": "1.0.3",
     "@fontsource/inter": "4.5.14",
+    "@paarrot/plugin-manager": "file:../../PluginManager",
     "@tanstack/react-query": "5.24.1",
     "@tanstack/react-query-devtools": "5.24.1",
     "@tanstack/react-virtual": "3.2.0",