Fix: Update elevation chart when dragging any waypoint, not just selected

Previously, plotElevation() was only called if the dragged waypoint
matched selectedMarker. This meant dragging an unselected waypoint
wouldn't update the chart.

Now plotElevation() is called for all waypoint drags:
- If waypoint is selected: updates elevation + runs full async logic
- If waypoint is not selected: updates elevation chart only

This ensures the elevation profile always reflects the current mission
geometry after any waypoint is moved.

Author: sensei-hacker

tabs/mission_control.js

@@ -2340,6 +2340,9 @@ function iconKey(filename) {
 
                         plotElevation();
                     })()
+                } else {
+                    // Update elevation chart even for non-selected waypoints
+                    plotElevation();
                 }
             }
             else if (tempMarker.kind == "home" ) {