Fixed occasional issues with ydoc server starting in dev mode, which were caused by missing dist file, then nodemon failing to trigger a file watch event after esbuild completion. Now esbuild is directly responsible for managing a child process, without needing an additional layer of file watchers.
# Important Notes
The command to run the gui dev environment has been changed. Invoking the old command will print a message about that.
From now on, use `pnpm dev:gui2` in repository root.
