CarPlay integration

**Is your feature request related to a problem? Please describe.**
Element is actually not usable with CarPlay, contrary to some other messaging apps, amongst others Telegram, WhatsApp, or of course iMessage.
It is, imho a big lack of the platform, as implementing CarPlay for messaging apps ensure that peoples won't look at there phones when receiving a message, and will be able to send message concentrating on the road.

**Describe the solution you'd like**
Integrating CarPlay messaging in itself is really easy. The only part that might take some time is requesting the entitlement from Apple (everything is described [here](https://developer.apple.com/documentation/carplay/requesting_the_carplay_entitlements)

**Describe alternatives you've considered**
Using other IMs platforms