Switching available backup methods from wellknown is not handled

### Steps to reproduce

Raised from #5784

Server configuration update: if server updates (for example) secure backup methods from ["key", "passphrase"] to ["passphrase"], any user that has setup a key recovery in the meantime will still get a key recovery flow in case of session verification (this avoids losing their data but doesn't respect the homeserver setting). It might be useful to look upon a specific recovery method switch flow for these kind of cases.

### Outcome

When having a config (after update):
`"io.element.e2ee": {
"secure_backup_required": true,
"secure_backup_setup_methods": ["passphrase"]
}`

This is due to navigation/display being based on `MXRecoveryService` rather than the WellKnown properties.

### Your phone model

_No response_

### Operating system version

_No response_

### Application version

_No response_

### Homeserver

_No response_

### Will you send logs?

No