Instance domains are shown in ASCII representation and not UTF representation, making them unreadable to humans

### Site

phanpy.social

### Version

_No response_

### Instance

süßetau.be

### Browser

Firefox 151.0.4 on NixOS 26.05

### Bug description

On the account page the instance domain is display in ASCII representation with xn--... instead of the UTF representation, making it unreadable to humans.

### To reproduce

1. Have some fediverse instance with non-ASCII characters in the domain
2. Go to the page of an account on that instance
3. The domain is always displayed in the ASCII representation using punycode

### Expected behavior

The domain should be in UTF representation, making it human readable

### Other

_No response_

No files or tests are named. Start by finding the account page code that renders the instance domain and inspect how hostnames are currently displayed; reproduce with süßetau.be. Done means non-ASCII instance domains appear in readable UTF form while ordinary domains remain correct.

Written by the indexing model from the issue text.