Deleted messages cause a "Failed to load messages" error to appear

[trash-pandy]

Describe the bug

Deleted messages cause a "Failed to load messages" error to appear.

Reproduction

1. Enter any standard room where the user can send messages
2. Send a message
3. Delete the message

Expected behavior

The message is deleted and an error does not appear.

Platform and versions

1. OS: Arch Linux
2. Browser: Zen Browser 1.19b (Firefox 148.0)
3. Sable: v1.5.1-dev (2dd707b)
4. Homeserver: Continuwuity 0.5.6

Additional context

Occurs when other users delete their messages, as well

[Just-Insane]

This should be fixed by #238