xsession: add startx argument, lupan-set-theme: use pkill

shell/.profile

@@ -36,7 +36,7 @@ if [ -z "$DISPLAY" -a -z "$WAYLAND_DISPLAY" -a "$(tty)" = /dev/tty1 ]; then
     if which /usr/bin/sx > /dev/null; then
         exec /usr/bin/sx ~/.xsession
     elif which /usr/bin/startx > /dev/null; then
-        exec /usr/bin/startx
+        exec /usr/bin/startx ~/.xsession
     elif which Hyprland > /dev/null && [ -d ~/.config/hypr ]; then
         exec Hyprland
     elif which river > /dev/null && [ -d ~/.config/river ]; then