v0.5.20

[RCINT-6958] Should not prompt user to set area code when user is RC/UK/EU/AU or BT brand (#665)
Show view contact (#666)
feat: implement WebRTC warning badge (#667)
enhance modal (#668)
comment webphone connect to fix test (#669)
clean recipient input only when addToNumber success (#670)
fix(AudioSettingsAlert): change incorrect docwrittings (#672)
update click to sms of active calls page (#673)
make RecentActivityContainer expendable (#674)
Update badge (#676)
enhance dropdown list of disable property. (#671)
fix CallBadgeContainer position (#677)
style(MessageTabButton/style.scss): refine style rules for notice badge (#678)
implement multipartTextTooLong alert message for MessageSender module (#679)
fix bug in presence in contact details (#680)
remove initialized state and localstorage dependency in widget integration test (#675)