3.1.2

• Fixed crash if username, first_name or last_name of sender are not defined (thanks to @cololi)
• Use empty username and lastName and use "Deleted User" as firstName if sender user is not available/deleted (thanks to @cololi)

3.1.1

• Fixed Docker build to use Python 3.10

3.1.0

• Implemented downloading media (#3)
• Implemented translating messages (#4)