Fix Bed Tramming 5th point (#21646)

Marlin/src/lcd/extui/lib/mks_ui/draw_tramming_pos_settings.cpp

       value = level_pos_y4;
       break;
     case ID_MANUAL_POS_X5:
-      value = level_pos_y5;
+      value = level_pos_x5;
       break;
     case ID_MANUAL_POS_Y5:
       value = level_pos_y5;
   else {
     itoa(gCfgItems.trammingPos[4].x, public_buf_l, 10);
     itoa(gCfgItems.trammingPos[4].y, buf2, 10);
-    lv_screen_menu_item_2_edit(scr, leveling_menu.position4, PARA_UI_POS_X, PARA_UI_POS_Y, event_handler, ID_MANUAL_POS_Y5, 0, buf2, ID_MANUAL_POS_X5, public_buf_l);
+    lv_screen_menu_item_2_edit(scr, leveling_menu.position5, PARA_UI_POS_X, PARA_UI_POS_Y, event_handler, ID_MANUAL_POS_Y5, 0, buf2, ID_MANUAL_POS_X5, public_buf_l);
 
     lv_big_button_create(scr, "F:/bmp_back70x40.bin", machine_menu.previous, PARA_UI_TURN_PAGE_POS_X, PARA_UI_TURN_PAGE_POS_Y, event_handler, ID_MANUAL_POS_UP, true);
   }