Dual SIM option: different ring and text notifications for the SIM cards

Many current mobile phones (including the ones supported by /e/) a)low to be used with 2 SOM cards.

I am proposing a feature in case 2 SIM cards are plugged-into the phone:

• Imtroduce a toggle (in settings/sounds): 'Different ring tone for the 2nd SIM card'
• If it is set: allow to introduce a different ringtone for SIM 2

Proceed in the same way for text messages arriving on SIM 2