Add missing dependencies

- v4l-utils: necessary for webcam sharing
- lib(ayatana-)appindictor-gtk3: necessary for notifications icons
- libnotify-bin/libnotify: necessary for notify-send
- libnotify4/libnotify: necessary to register notifications
- dunst/notification-daemon: necessary to serve notifications

For: QubesOS/qubes-issues#6426
Fixes: QubesOS/qubes-issues#8453
Fixes: QubesOS/qubes-issues#7991
Fixes: https://github.com/QubesOS/qubes-video-companion/issues/20

debian/control

@@ -17,6 +17,9 @@ Depends: gir1.2-ayatanaappindicator3-0.1,
          python3,
          v4l-utils,
          acl,
+         libnotify-bin,
+         libnotify4,
+         dunst | notification-daemon,
          ${misc:Depends},
 Suggests:
   v4l2loopback-dkms (>= 0.12.5-1),

rpm_spec/qubes-video-companion-dom0.spec.in

@@ -19,6 +19,11 @@ BuildRequires:  python3-setuptools
 BuildRequires:  python3-devel
 
 Requires:       gstreamer1-plugins-good
+Requires:       v4l-utils
+## Fedora 37 doesn't have libayatana-appindicator-gtk3
+Requires:       libappindicator-gtk3
+Requires:       (dunst or notification-daemon)
+Requires:       libnotify
 
 %description
 Qubes Video Companion is a tool for securely streaming webcams and sharing

rpm_spec/qubes-video-companion.spec.in

@@ -37,6 +37,9 @@ BuildArch:      noarch
 Requires:       gstreamer1-plugins-good
 Requires:       python3
 Requires:       v4l-utils
+Requires:       libayatana-appindicator-gtk3
+Requires:       (dunst or notification-daemon)
+Requires:       libnotify
 Requires:       qubes-video-companion-license
 
 %description sender
@@ -73,8 +76,10 @@ BuildArch:      noarch
 BuildRequires:  pandoc
 Requires:       gstreamer1-plugins-good
 Requires:       python3
-Requires:       qubes-video-companion-license
 Requires:       acl
+Requires:       (dunst or notification-daemon)
+Requires:       libnotify
+Requires:       qubes-video-companion-license
 
 %description receiver
 Qubes Video Companion is a tool for securely streaming webcams and sharing