quickshell: add systemd service and system popout update/ALHP status improvements

- Add quickshell.service for systemd --user autostart
- Add ALHP status indicators (good/stale/building) with color-coded icons
- Make updates and ALHP building rows expandable with animated chevron
- Capture full checkupdates package list for expand drawer
- Parse alhp.utils packages array for ALHP expand drawer

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

dot_config/systemd/user/quickshell.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=Quickshell desktop shell
+PartOf=graphical-session.target
+After=graphical-session.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/qs
+Restart=on-failure
+RestartSec=2
+
+[Install]
+WantedBy=graphical-session.target