The binary path of "Update/Delete this AppImage" in context menu is wrong

[wcbing]

Pre-submit checks

• I checked for similar issues beforehand, but could not find any, not even closed ones. I could not add my bug report to any existing issue.
• I am going to take the time to to fill in all the required details. I know that the bug report will be dismissed otherwise.

Describe the bug

"Delete this AppImage" and "Update this AppImage" in context menu does not work. Manual run the update in desktop file, output:

/opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/update: error while loading shared libraries: libQt5QuickWidgets.so.5: cannot open shared object file: No such file or directory

Expected behavior

Pop-up window

Steps to reproduce the issue

> /opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/update "a.appimage"
/opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/update: error while loading shared libraries: libQt5QuickWidgets.so.5: cannot open shared object file: No such file or directory
> ldd /opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/update 
	linux-vdso.so.1 (0x00007f77457d3000)
	libappimageupdate-qt.so => /opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/libappimageupdate-qt.so (0x00007f774577b000)
	libQt5QuickWidgets.so.5 => not found
...
...
> ll /opt/appimagelauncher.AppDir/usr/bin/../lib/libQt5QuickWidgets.so.5
-rw-r--r-- 1 root root 106K 2025-10-29 06:33 /opt/appimagelauncher.AppDir/usr/bin/../lib/libQt5QuickWidgets.so.5
> LD_PERLOAD=/opt/appimagelauncher.AppDir/usr/lib/libQt5QuickWidgets.so.5 /opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/update "a.appimage"
/opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/update: error while loading shared libraries: libQt5QuickWidgets.so.5: cannot open shared object file: No such file or directory

If I install "libqt5quickwidgets5" by apt, It won't make that mistake again.

---

The next error is the same as #748 , which can be run temporarily by link （No discussion here for the time being）.

Screenshots

No response

Distribution and desktop environment

Debian Unstable, GNOME 50

Installed AppImageLauncher version

AppImageLauncher version 3.0.0-beta-2 (git commit 96cb937), built on 2025-10-28 22:31:15 UTC

List of AppImages you tried (ideally with URL)

No response

Additional context

No response

[wcbing]

After testing, it seems to be the same problem to #748 .

• Some useless (or redundant) files in /opt/appimagelauncher.AppDir/usr/lib/x86_64-linux-gnu/appimagelauncher/
• The binary path of "Update/Delete this AppImage" in context menu is wrong.