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/peerjs-js-binarypack/biome.json

@@ -0,0 +1,15 @@
+{
+	"$schema": "https://biomejs.dev/schemas/1.4.1/schema.json",
+	"files": {
+		"ignore": ["dist", "node_modules", "package-lock.json"]
+	},
+	"organizeImports": {
+		"enabled": false
+	},
+	"linter": {
+		"enabled": false,
+		"rules": {
+			"recommended": true
+		}
+	}
+}