**Refactor imports and improve type annotations**

- Adjusted import statements across the codebase to align with consistent use of `type`.
- Unified usage of `EventSource` initialization.
- Introduced `RootDeps` type for shared dependencies.
- Commented out unused VitePWA configuration.
- Updated proxy target URLs in Vite configuration.

packages/client/src/components/chat/lib/exportConversationAsMarkdown.ts

@@ -1,6 +1,6 @@
 // Function to generate a Markdown representation of the current conversation
 import { type IMessage } from "../../../stores/ClientChatStore";
-import { Instance } from "mobx-state-tree";
+import { type Instance } from "mobx-state-tree";
 
 export function formatConversationMarkdown(
   messages: Instance<typeof IMessage>[],