nvda

567a5797 - Fix error when a synthesizer don't expose available languages (#20100)

Fix error when a synthesizer don't expose available languages (#20100) Fixes #20080 Summary of the issue: When NVDA is configured to report if the language of the text been read is supported, an error is produced if the syntesizer exposes available languages as None. Description of user facing changes: Fixed an error with certain syntesizers when reporting if the language of the text been read is supported. Description of developer facing changes: Description of development approach: Check if available language is None.