Fixed an issue where disposing was not working correctly, so using auto-profiles by application was causing the plugin to stop responding

now there is just one event loop for window changing, and instances of the dial action can register to the event

src/FocusVolumeControl/FocusVolumeControl.csproj

@@ -70,6 +70,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="UI\UIState.cs" />
     <Compile Include="UI\ValueWithOpacity.cs" />
+    <Compile Include="WindowChangedEventLoop.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />