Closing CC and BCC fields in Compose does not work

[gtandersen]

Describe the bug On the Compose screen, closing the CC and BCC fields using the X button to the right does not work.

To Reproduce Steps to reproduce the behavior:

1. Go to https://runbox.com/app/compose?new=true
2. Click on the CC or BCC buttons to show either field
3. Click on the X to the right of the field and observe the field does not close

Expected behavior The CC and BCC fields should close when clicking the X button next to them (when the fields are empty).

Screenshots