【Zoom Level Adjustment】 Added relevant keyboard shortcuts for quick zoom level adjustments.

Currently, when zooming the map using the mouse wheel, the large scene requires multiple scrolls to adjust to a suitable view. We request adding a shortcut operation: "Hold Ctrl + mouse wheel scroll." This would increase the zoom magnitude per scroll. For example, a single scroll would zoom minimally without Ctrl, while holding Ctrl would allow a single scroll to zoom more dramatically. This would enable rapid map zooming and make it easier to select aircraft for issuing commands.