Attempting to send a screenshot to Element from the system-provided share menu will cause it to crash.

### Steps to reproduce

1. Exit Element and go to any location;
2. Generate a screenshot and start sharing it, selecting Element as the destination.

### Outcome

#### What did you expect?
n/a

Element crashes at this point.

### Your phone model

HMD TA-1054

### Operating system version

Android 8.1

### Application version and app store

Element 1.6.8 (Google Play)

### Homeserver

Synapse 1.98.0

### Will you send logs?

Yes

### Are you willing to provide a PR?

No