Updated translations

app/src/main/res/values-de/strings.xml

app/src/main/res/values-fr-rCA/strings.xml

app/src/main/res/values-it/strings.xml

app/src/main/res/values-lt/strings.xml

app/src/main/res/values-pt/strings.xml

app/src/main/res/values-pt/strings_error.xml

app/src/main/res/values-pt/strings_messages.xml

app/src/main/res/values-pt/strings_preferences.xml

app/src/main/res/values-pt/strings_settings.xml

app/src/main/res/values-pt/strings_setup.xml

app/src/main/res/values-sr/strings.xml

metadata/it-IT/full_description.txt

metadata/pt-PT/full_description.txt