Ed read messages

[emilykdewitt]

Closes #24 and closes #25

[tilleraj]

Read is working, just not live updating (which would be a pain to implement). Edit is working, but has the following issues:

• editing breaks the timestamp
• there is no cursor in the message when editing
• you can have multiple messages in edit mode

[HeathJHMoore]

👍

[tilleraj]

Create and Read are working 👍