Host Match Detection broken for URLs with ports

### Steps To Reproduce

https://github.com/bitwarden/mobile/issues/2970
1. Save an autofill item for a URL with a port.
2. See how it behaves on sites.

### Expected Result

Works correctly. Or at least works like the old app.

### Actual Result

Doesn't work.

### Screenshots or Videos

_No response_

### Additional Context

_No response_

### Build Version

2025.3.0

### What server are you connecting to?

Self-host

### Self-host Server Version

_No response_

### Environment Details

_No response_

### Issue Tracking Info

- [x] I understand that work is tracked outside of Github. A PR will be linked to this issue should one be opened to address it, but Bitwarden doesn't use fields like "assigned", "milestone", or "project" to track progress.

Start by reproducing the Android autofill failure with a saved item whose URL includes a port, then compare its host match behavior with the old app. Trace the host match detection entry point and verify that autofill works correctly on sites using ported URLs.

Written by the indexing model from the issue text.