🔑 Client cert based auth

[tobiasKaminsky]

• Android 🔑 Support for client certificates android#603
• iOS 🔑 Use SSL Client Certificate to improve security ios#847
• server: 🔑 Add client cert auth docker-ci#616

[WinkelB]

• Android 🔑 Support for client certificates android#603
• iOS 🔑 Use SSL Client Certificate to improve security ios#847
• server: 🔑 Add client cert auth docker-ci#616

Im looking forward for this enhancement.
In the Overview are you missing the Desktop Application?
https://github.com/nextcloud/desktop

I've already created an Issue a while back.
nextcloud/desktop#6493