Unhandled offline error during deck submission

[CravingCrates]

Summary

When submitting a deck suggestion without an active internet connection, AnkiCollab displays a full Python traceback instead of a user-friendly error message.

Steps to reproduce

1. Disconnect the device from the internet (or otherwise prevent DNS resolution/network access).
2. Open Anki and start a deck submission/suggestion through AnkiCollab.
3. Submit the deck.

Expected behavior

The add-on should gracefully handle network connectivity failures and show a clear message such as:

"Unable to connect to AnkiCollab. Please check your internet connection and try again."

The operation should fail cleanly without exposing an internal traceback.

Actual behavior

The add-on raises an unhandled requests.exceptions.ConnectionError originating from a failed DNS lookup for plugin.ankicollab.com, resulting in a large traceback being shown to the user.

Root cause in the traceback:

requests.exceptions.ConnectionError
└── urllib3.exceptions.MaxRetryError
    └── urllib3.exceptions.NameResolutionError
        └── socket.gaierror

The exception occurs while calling:

deck_repr.get_protected_fields(deckHash)

which ultimately performs:

requests.get(...)

without handling connection-related exceptions. Maybe catch it beforehand or handle gracefully ig