FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/@tauri-apps/cli/append-headers.js

@@ -0,0 +1,15 @@
+// Copyright 2019-2024 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+const HEADERS = `// Copyright 2019-2024 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT`
+
+const fs = require('fs')
+
+for (const file of ['index.js', 'index.d.ts']) {
+  const content = fs.readFileSync(file, 'utf8')
+  const newContent = `${HEADERS}\n\n${content}`
+  fs.writeFileSync(file, newContent, 'utf8')
+}