Email verification page on signup is nonfunctional

### Steps to reproduce

1. Go to element.plus.st and attempt to register an account with an email
2. Enter account creation token
3. Go though captcha verifcation
4. Infinite loading on email prompt

#### To add:
Adding an email in account settings after registration does work

#### Element config.json:
```
{
"default_server_name": "plus.st",
"default_server_config": {
"m.homeserver": {
"base_url": "https://matrix.plus.st"
},
"m.identity_server": {
"base_url": "https://vector.im"
}
},
"brand": "Element",
"integrations_ui_url": "https://scalar.vector.im/",
"integrations_rest_url": "https://scalar.vector.im/api",
"integrations_widgets_urls": [
"https://scalar.vector.im/_matrix/integrations/v1",
"https://scalar.vector.im/api",
"https://scalar-staging.vector.im/_matrix/integrations/v1",
"https://scalar-staging.vector.im/api",
"https://scalar-staging.riot.im/scalar/api"
],
"bug_report_endpoint_url": "https://element.io/bugreports/submit",
"uisi_autorageshake_app": "element-auto-uisi",
"showLabsSettings": false,
"roomDirectory": {
"servers": ["matrix.org", "gitter.im", "libera.chat"]
},
"enable_presence_by_hs_url": {
"https://matrix.org": false,
"https://matrix-client.matrix.org": false
},
"terms_and_conditions_links": [
{
"url": "https://element.io/privacy",
"text": "Privacy Policy"
},
{
"url": "https://element.io/cookie-policy",
"text": "Cookie Policy"
}
],
"posthog": {
"projectApiKey": "phc_Jzsm6DTm6V2705zeU5dcNvQDlonOR68XvX2sh1sEOHO",
"apiHost": "https://posthog.element.io"
},
"privacy_policy_url": "https://element.io/cookie-policy",
"map_style_url": "https://api.maptiler.com/maps/streets/style.json?key=fU3vlMsMn4Jb6dnEIFsx"
}
```

### Outcome

#### What did you expect?

Email verification to work

#### What happened instead?

On the email verification step, it loads infinitely

### Operating system

Fedora Silverblue

### Browser information

Firefox 117.0.1 (64-bit)

### URL for webapp

https://element.plus.st/

### Application version

Element version: 1.11.44-rc.1 Olm version: 3.2.14

### Homeserver

plus.st

### Will you send logs?

No