[Manage observers] [BACKLOG] Send password via sms

[aniri]

API

• implement mechanism to send new password via sms to observer

Best practices

• codebase language should be English

• we :two_hearts: unit tests

• [ ] FE: Implement Send SMS button on single observer or list of observers

• [ ] FE: Enhance Observers panel to edit the text of the sms sent to observers

• [ ] BE: Enhance controller to receive a list of observers and send sms to each one of them with the text defined on frontend

• [ ] BE: Enhance backend logic for sending SMS messages - integrate this repo https://github.com/code4romania/votemonitor-twilio