Searching for rooms whose names clash with your homeserver’s name doesn’t end well

### Steps to reproduce

1. Work at Element
2. Search for a room called Element
3. Get flooded with results for users and room aliases with element.io as their homeserver
4. Have to dig deep to find rooms actually called Element, especially given also https://github.com/vector-im/element-web/issues/22886

### Outcome

#### What did you expect?

Perhaps ignore domains in mxids and roomids and room aliases? Or perhaps ignore them at least if they match your own user’s mxid?

#### What happened instead?

Death by results


### Operating system

_No response_

### Application version

1.10.0

### How did you install the app?

_No response_

### Homeserver

_No response_

### Will you send logs?

Yes