Convert all remaining json manifests to yaml

This conversion can be validated using this script:

 #!/bin/bash

mkdir -p repo && cd repo && ostree init --repo . --mode=archive && cd ..
variants=('silverblue' 'kinoite' 'xfce' 'lxqt')

for v in ${variants[@]}; do
    sudo rpm-ostree compose tree --repo=repo --print-only fedora-$v.yaml > $v.yaml.out
done

git checkout --quiet HEAD~
for v in ${variants[@]}; do
    sudo rpm-ostree compose tree --repo=repo --print-only fedora-$v.yaml > $v.json.out
done

for v in ${variants[@]}; do
    if [[ ! -z $(diff $v.json.out $v.yaml.out) ]]; then
        echo ""
        echo "$v: JSON != YAML"
        diff $v.json.out $v.yaml.out
        echo ""
        has_diff="true"
    fi
done

git checkout --quiet master
rm -rf ./repo
for v in ${variants[@]}; do
    rm ./$v.json.out ./$v.yaml.out
done

if [[ $has_diff == "true" ]]; then
    echo "Found some diff!"
else
    echo "OK!"
fi

xfce-desktop-pkgs.yaml

@@ -0,0 +1,59 @@
+# DO NOT EDIT! This content is generated from comps-sync.py
+include: fedora-common-ostree.yaml
+packages:
+  - NetworkManager-fortisslvpn-gnome
+  - NetworkManager-iodine-gnome
+  - NetworkManager-l2tp-gnome
+  - NetworkManager-libreswan-gnome
+  - NetworkManager-openconnect-gnome
+  - NetworkManager-openvpn-gnome
+  - NetworkManager-pptp-gnome
+  - NetworkManager-ssh-gnome
+  - NetworkManager-sstp-gnome
+  - NetworkManager-strongswan-gnome
+  - NetworkManager-vpnc-gnome
+  - adwaita-gtk2-theme
+  - adwaita-icon-theme
+  - albatross-gtk2-theme
+  - albatross-gtk3-theme
+  - albatross-xfwm4-theme
+  - arc-theme
+  - blueberry
+  - bluebird-gtk2-theme
+  - bluebird-gtk3-theme
+  - bluebird-xfwm4-theme
+  - desktop-backgrounds-compat
+  - fedora-icon-theme
+  - gnome-keyring-pam
+  - greybird-gtk2-theme
+  - greybird-gtk3-theme
+  - greybird-xfce4-notifyd-theme
+  - greybird-xfwm4-theme
+  - gtk-xfce-engine
+  - gvfs
+  - gvfs-archive
+  - gvfs-mtp
+  - initial-setup-gui
+  - lightdm-gtk
+  - network-manager-applet
+  - nm-connection-editor
+  - xdg-user-dirs-gtk
+  - xfce4-about
+  - xfce4-appfinder
+  - xfce4-datetime-plugin
+  - xfce4-panel
+  - xfce4-places-plugin
+  - xfce4-power-manager
+  - xfce4-pulseaudio-plugin
+  - xfce4-screenshooter-plugin
+  - xfce4-session
+  - xfce4-session-engines
+  - xfce4-settings
+  - xfce4-taskmanager
+  - xfce4-terminal
+  - xfconf
+  - xfdesktop
+  - xfwm4
+  - xfwm4-theme-nodoka
+  - xfwm4-themes
+  - xscreensaver-base