Redacted join events display as an empty box in the timeline

### Steps to reproduce

1. Join a user to a room
2. Redact that user's join event
3. Observe that EX renders an empty "room change" line (e.g. https://matrix.to/#/!aCvOWKNDeXXpPgquKq:matrix.org/$cZVjfEH3VJM0AWToXwNWQwdFl4Oiwo27wXsNCVxb_Zg?via=matrix.org&via=tchncs.de&via=envs.net)

Alternatively wait for a spammer to join the EXA room and the Administrator account to ban them and redact their join event, like the linked message above.

### Outcome

#### What did you expect?
To read either `$user joined the room` or `$user joined the room and was removed` or something like that.
Element Web simply renders `$user joined the room`

#### What happened instead?
No text is rendered

### Your phone model

_No response_

### Operating system version

_No response_

### Application version and app store

_No response_

### Homeserver

_No response_

### Will you send logs?

Yes

### Are you willing to provide a PR?

No