Fix a false RustDesk health warning

The check queried `systemctl --user is-active rustdesk.service`, but
RustDesk ships an enabled *system* service (root-owned, spawns the
session --server/--tray on its own -- see autostart.lua's comment on
why Panama doesn't start it a second time). No user-scope unit by
that name exists, so the check always reported inactive regardless of
whether RustDesk was actually running. Dropped --user; confirmed live
that a plain `systemctl is-active` correctly reads the system unit
without needing root, and the doctor now reports "Service is active."

Claude-Session: https://claude.ai/code/session_01E6TJUAh41HaP25MVHWkhRZ

config/dot/quickshell/scripts/panama-doctor

@@ -125,7 +125,13 @@ SYSTEMCTL_COMMANDS = {
     "vicinae": ("systemctl", "--user", "is-active", "--quiet", "vicinae.service"),
     "pipewire": ("systemctl", "--user", "is-active", "--quiet", "pipewire.service"),
     "nextcloud": ("systemctl", "--user", "is-active", "--quiet", "nextcloud.service"),
-    "rustdesk": ("systemctl", "--user", "is-active", "--quiet", "rustdesk.service"),
+    # System-scope, not --user: RustDesk ships an enabled *system* service
+    # (`rustdesk --service`, root-owned) that spawns the session --server and
+    # --tray on its own -- see autostart.lua's comment on why Panama doesn't
+    # start it a second time. Querying --user here always reports inactive,
+    # since no such user-scope unit exists, regardless of whether the real
+    # service is running.
+    "rustdesk": ("systemctl", "is-active", "--quiet", "rustdesk.service"),
 }
 REPAIR_COMMANDS = MappingProxyType({
     "desktop.hyprpaper": ("systemctl", "--user", "restart", "hyprpaper.service"),