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/viem/tempo/internal/concurrent.ts

@@ -0,0 +1,24 @@
+const concurrentCounts = new Map<string, number>()
+
+/**
+ * Detects if there are concurrent tasks occuring for a given key
+ * within the same event loop tick. Registers the request, yields to allow
+ * other concurrent calls to register, then returns whether multiple requests
+ * were detected.
+ *
+ * @example
+ * ```ts
+ * const isConcurrent = await Concurrent.detect(address)
+ * ```
+ */
+export async function detect(key: string): Promise<boolean> {
+  concurrentCounts.set(key, (concurrentCounts.get(key) ?? 0) + 1)
+  await Promise.resolve()
+  const isConcurrent = (concurrentCounts.get(key) ?? 0) > 1
+  queueMicrotask(() => {
+    const count = concurrentCounts.get(key) ?? 0
+    if (count <= 1) concurrentCounts.delete(key)
+    else concurrentCounts.set(key, count - 1)
+  })
+  return isConcurrent
+}