element-desktop ignores gnome preferred application settings for http/https/html

### Steps to reproduce

Reproduce:
Open element-desktop
Click on a link
See the wrong browser being opened

### Outcome

My gnome settings for my preferred browser are set to firefox (update-alternatives x-www-browser and gnome-www-browser). All apps use firefox to open web pages when I click on links.

Element version: 1.11.64
Crypto version: Rust SDK 0.7.0 (61b175b), Vodozemac 0.5.1
insists to open links in another browser, which is installed on the system as well.

Uninstalling of the browser and element-desktop has not changed anything

### Operating system

Description: Ubuntu Noble Numbat (development branch) Release: 24.04

### Application version

Element version: 1.11.64 Crypto version: Rust SDK 0.7.0 (61b175b), Vodozemac 0.5.1

### How did you install the app?

$ apt-cache policy element-desktop element-desktop: Installed: 1.11.64 Candidate: 1.11.64 Version table: *** 1.11.64 500 500 https://packages.element.io/debian default/main amd64 Packages 100 /var/lib/dpkg/status

### Homeserver

I do not know, university server at KIT

### Will you send logs?

Yes