Add language and cache

[milansim]

Your addon works like a charm when permission on folder is set However, I really miss language option (for non english speakers) and cache (usefull when HA is offline)

[floris-b]

This integration does not need internet access, it does use a text to speech integration that may use it. As far as I know text to speech integrations do use cache The language of the notify message is set in the text to speech integration, I have no plans to set the language in the notify message

[milansim]

It should not be a great revamp of your code but okey, I understand Thanks on fast reply