Send Email Button on Internal Shares Profiles is unresponsive

### ⚠️ Before posting ⚠️

- [x] This is a **bug**, not a question or an enhancement.
- [x] I've [searched for similar issues](https://github.com/nextcloud/android/issues) and didn't find a duplicate.
- [x] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Steps to reproduce

1. Go to Send/Share page of a Folder
2. Add an internal share user (if not already there)
3. Click on the profile icon of the user
4. In the Bottom Sheet that appears click on "Send email"
5. Bottom Sheet closes but nothing happens

### Expected behaviour

The web server returns this action as a mailto link. So the android client should also open the android's default email app (gmail in my case)

### Actual behaviour

Bottom Sheet closes but nothing happens.

### Android version

15 (API level 35)

### Device brand and model

vivo V2334

### Stock or custom OS?

Stock

### Nextcloud android app version

35.0.0 Alpha51

### Nextcloud server version

35.0.0 dev

### Using a reverse proxy?

No

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

_No response_

Start by reproducing the Send/Share flow for an internal share and inspect the handling of the profile bottom sheet's "Send email" action. Verify the server-provided mailto action is passed to Android correctly, and confirm that tapping it opens the device's default email app instead of only closing the sheet.

Written by the indexing model from the issue text.