Unexpected objects crash cinny

[nexy7574]

Describe the bug

Unexpected values in events, where strings are expected, will cause cinny to crash, seemingly because it tries to render them.

For example,

{"body": {"foo": "bar"}, "msgtype": "m.text"} // message event

{"displayname": {}}  // avatar event

This causes cinny to crash: t.match is not a function

Reproduction

Send an invalid event, such as m.room.message + {"body": {}, "msgtype": "m.text"}. This instantly and persistently crashes cinny until the offending event is removed.

Expected behavior

Cinny would display an error, such as the "unsupported event" one used for unsupported events.

Platform and versions

Windows 10, Firefox, Cinny 4.2.3, nexy7574.co.uk

Additional context

No response

[nexy7574]

Looks like the message content handles this appropriately, but the membership still causes issues with the timeline