WATranslate v2.4 - Translation Network Retry Patch

Problem fixed:
A temporary DNS/network failure such as:

Translation network error: Resolving timed out after 10000 milliseconds

previously caused the incoming message to be stored without a translation
after the first failed MyMemory request.

New behaviour:
- Up to 3 attempts for temporary network/server errors.
- Short retry backoff.
- Each attempt has a 6-second connection timeout and 12-second total timeout.
- Non-network translation errors are not blindly retried.
- No change to Meta settings, database schema, language routing, or UI.

INSTALL
Extract directly into:

public_html/whatsapp-server-translator/

Overwrite:

src/MyMemoryTranslator.php

No browser cache refresh is technically required because this is PHP/server-side,
but refreshing WATranslate after installing is fine.

IMPORTANT
This improves resilience but cannot make a free third-party translation API
100% reliable. If MyMemory is unavailable for an extended period, translation
can still fail.
