fix check_mangohud v0.63

Author: VHSgunzo

usr/bin/lutris-wine

@@ -3482,6 +3482,9 @@ export MANGOHUD_CONFIG="no_display,gpu_stats,gpu_temp,gpu_core_clock,gpu_mem_clo
 cpu_stats,cpu_temp,cpu_load_change,core_load_change,cpu_color=2e97cb,cpu_text=CPU,io_color=a491d3,vram,vram_color=ad64c1,ram,ram_color=c26693,fps,\
 engine_version,engine_color=eb5b5b,gpu_name,gpu_color=2e9762,vulkan_driver,wine,wine_color=eb5b5b,frame_timing=1,frametime_color=00ff00,\
 resolution,vkbasalt,gamemode,background_alpha=0.4,font_size=24,background_color=020202,position=top-left,text_color=ffffff,toggle_hud=Shift_R+F12"
+                    elif [[ ! -z "$MANGOHUDCFG" && "$MANGOHUD_USER_CONF" != 1 ]]
+                        then
+                            export MANGOHUD_CONFIG="$MANGOHUDCFG"
                     fi
                 else
                     print_error "MANGOHUD not found in your system!"