chore: Only enable sddm-fix on KDE images, disable on deck

Containerfile

@@ -706,6 +706,7 @@ RUN rm -f /etc/profile.d/toolbox.sh && \
     echo "import \"/usr/share/ublue-os/just/86-bazzite-windows.just\"" >> /usr/share/ublue-os/justfile && \
     echo "import \"/usr/share/ublue-os/just/90-bazzite-de.just\"" >> /usr/share/ublue-os/justfile && \
     if grep -q "kinoite" <<< "${BASE_IMAGE_NAME}"; then \
+      systemctl enable usr-share-sddm-themes.mount && \
       mkdir -p "/usr/share/ublue-os/dconfs/desktop-kinoite/" && \
       cp "/usr/share/glib-2.0/schemas/zz0-"*"-bazzite-desktop-kinoite-"*".gschema.override" "/usr/share/ublue-os/dconfs/desktop-kinoite/" && \
       find "/etc/dconf/db/distro.d/" -maxdepth 1 -type f -exec cp {} "/usr/share/ublue-os/dconfs/desktop-kinoite/" \; && \
@@ -764,7 +765,6 @@ RUN rm -f /etc/profile.d/toolbox.sh && \
     systemctl enable ublue-update.timer && \
     systemctl enable incus-workaround.service && \
     systemctl enable bazzite-hardware-setup.service && \
-    systemctl enable usr-share-sddm-themes.mount && \
     systemctl disable tailscaled.service && \
     systemctl enable dev-hugepages1G.mount && \
     systemctl enable bazzite-snapper-setup && \
@@ -917,6 +917,8 @@ RUN /usr/libexec/containerbuild/image-info && \
       find "/etc/dconf/db/distro.d/" -maxdepth 1 -type f -exec cp {} "/usr/share/ublue-os/dconfs/deck-silverblue/" \; && \
       dconf-override-converter to-dconf "/usr/share/ublue-os/dconfs/deck-silverblue/zz0-"*"-bazzite-deck-silverblue-"*".gschema.override" && \
       rm "/usr/share/ublue-os/dconfs/deck-silverblue/zz0-"*"-bazzite-deck-silverblue-"*".gschema.override" \
+    ; else \
+      systemctl disable usr-share-sddm-themes.mount \
     ; fi && \
     mkdir -p /tmp/bazzite-schema-test && \
     find "/usr/share/glib-2.0/schemas/" -type f ! -name "*.gschema.override" -exec cp {} "/tmp/bazzite-schema-test/" \; && \