Redesign Screen "Person Detail"

[frederikbugglin]

• create sections by implementing expandable tiles (Radio buttons to select primary address #72)
• add profile picture (Add field "Profile picture" to all persons #36)
• improve label filtering
• implement text editor in comments field (markdown commands) (Implement text toolbar pattern #64)

https://www.sketch.com/s/6023b9d5-7942-4477-8970-facb0651c7f4/a/jgexrMW

[wipascal]

@frederikbugglin if you can add screenshots of your "next generation" UI, that would be helpful

[frederikbugglin]

see issue #104