update launch script and desktop file

linux_packaging/assets/thinkfan-ui

@@ -1,30 +1,3 @@
 #! /usr/bin/env bash
 
-app_command='python3 /usr/lib/thinkfan-ui/fan.py'
-
-if [ `id -u` -eq 0 ]; then
-    # user is admin
-    ${app_command}
-else
-    # user is not admin
-    if `echo $- | grep "i" >/dev/null 2>&1`; then
-        # script is running in interactive mode
-        su - -c "${app_command}"
-    else
-        # script is running in non-interactive mode
-        if [ $XDG_SESSION_TYPE = "wayland" ]; then
-            xhost +SI:localuser:root
-            pkexec ${app_command}
-            xhost -SI:localuser:root
-            xhost
-        elif command -v pkexec >/dev/null 2>&1; then
-            pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY ${app_command}
-        elif command -v sudo >/dev/null 2>&1; then
-            x-terminal-emulator -e "sudo ${app_command}"
-        elif command -v su >/dev/null 2>&1; then
-            x-terminal-emulator -e "su - -c '${app_command}'"
-        else
-            x-terminal-emulator -e "echo 'Command must be run as root user: ${app_command}'"
-        fi
-    fi
-fi
+python3 /usr/lib/thinkfan-ui/fan.py "$@"

linux_packaging/assets/thinkfan-ui.desktop

@@ -6,5 +6,3 @@ Type=Application
 Terminal=false
 StartupNotify=true
 Categories=Utility;
-X-KDE-SubstituteUID=true
-X-KDE-Username=root