[BUG]: Application icons not showing

[fkumro]

Cosmic-applets version:

cosmic-applets:
  Installed: 0.1.0~1729524303~22.04~11faa56
  Candidate: 0.1.0~1729524303~22.04~11faa56
  Version table:
 *** 0.1.0~1729524303~22.04~11faa56 1002
       1001 http://apt.pop-os.org/release jammy/main amd64 Packages
       1002 http://apt.pop-os.org/staging/master jammy/main amd64 Packages
        100 /var/lib/dpkg/status

Specific applet that this is regarding (if applicable):
Unsure which applet shows app indicator icons?

Issue/Bug description:
On Pop!_OS 22.04 running COSMICDE from pop_dev:master, no app indicator icons are shown. They were previously working, however it's been common to have them show and then not show up depending on updates.

The following applications normally would show an icon, without them, the apps are unusable when minimized or closed. Apps are installed via flatpak.

• Signal flathub
• Vorta flathub
• Slack flathub
• Telegram flathub

All flatpak apps are forced to use wayland with no fallback to x11.

Steps to reproduce:

Install

• Pop!_OS 22.04
• COSMICDE from pop_dev:master
• Flatpak apps
• Adjust flatseal socket to only allow wayland
• Open apps, no icons will be shown

Expected behavior:

When the applications are opened, their app icons should be shown. If the applications are closed or minimized, they are available to be shown again by clicking on the icon in the applet.

Other notes: