Adds event counting in columns

Implements a method to count the number of events
within a specific column, used for layout calculations.

src/managers/AllDayManager.ts

@@ -523,6 +523,22 @@ export class AllDayManager {
     this.checkAndAnimateAllDayHeight();
   }
 
+  /**
+   * Count number of events in a specific column using ColumnBounds
+   */
+  private countEventsInColumn(columnBounds: ColumnBounds): number {
+    var columnIndex = columnBounds.index;
+    var count = 0;
+    
+    this.currentLayouts.forEach((layout) => {
+      // Check if event spans this column
+      if (layout.startColumn <= columnIndex && layout.endColumn >= columnIndex) {
+        count++;
+      }
+    });
+    return count;
+  }
+
   /**
    * Update overflow indicators for collapsed state
    */