Frequency navigation WIP

src/Core/FileTime.Core.Services/TabEvents.cs

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+using FileTime.Core.Models;
+
+namespace FileTime.Core.Services;
+
+public class TabEvents : ITabEvents
+{
+    public event EventHandler<TabLocationChanged> LocationChanged;
+    
+    public void OnLocationChanged(ITab tab, FullName location)
+    {
+        LocationChanged?.Invoke(this, new TabLocationChanged(location, tab));
+    }
+}