Update strings.xml
Update strings.xml

After talking to @rafaelks, we've decided that these two strings should be translated like this.
Using "Mutar" & "Desmutar", in some way, reminded me of mutations.
RocketChat/Rocket.Chat.Android,RocketChat/Rocket.Chat.Android,RocketChat/Rocket.Chat.Android.Lily,RocketChat/Rocket.Chat.Android.Lily