"Files" section on Room Info doesn't show files from a deleted session in a e2e Room

### Steps to reproduce

1. Send a file from a new client/device.
2. Unlink/Log out from said client/device
3. Check the "Files" section
4. You will see a messages saying that:

a) There are no files visible in the room, if all images were sent from deleted sessions
b) You can't see earlier messages, if you have files sent from an active session

### Outcome

#### What did you expect?
All files are visible, as the room is decrypted.

#### What happened instead?
4.a) https://exploit.sbs/1mygiVQA
4.b) https://exploit.sbs/SMm4JnuC

### Operating system

Windows 10

### Application version

Element version 1.11.5

### How did you install the app?

element.io

### Homeserver

matrix.org

### Will you send logs?

No