feat(desktop): Gracefully Handle Server Disconnects

[dbpolito]

What does this PR do?

Currently if you open the web app without a server running, it will just throw an error, with this PR:

1. When you open the app, and fails to connect the server, the select server dialog appears, without being able to close
2. When you lose server connection, the select server dialog appears, without being able to close until you reconnect

How did you verify your code works?

Before:

Now:

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

No duplicate PRs found