Merged Cake and Abel branched into 2.0.3 (#131)

Co-authored-by: azyges <aaaaaa@aaa.aaa>
Co-authored-by: cake <admin@cakeandbanana.nl>
Co-authored-by: defnotken <itsdefnotken@gmail.com>
Reviewed-on: #131

LightlessSync/UI/DtrEntry.cs

@@ -103,10 +103,19 @@ public sealed class DtrEntry : IDisposable, IHostedService
 
     public async Task StopAsync(CancellationToken cancellationToken)
     {
-        await _cancellationTokenSource.CancelAsync().ConfigureAwait(false);
+        _cancellationTokenSource.Cancel();
+
+        if (_dalamudUtilService.IsOnFrameworkThread)
+        {
+            _logger.LogDebug("Skipping Lightfinder DTR wait on framework thread during shutdown.");
+            _cancellationTokenSource.Dispose();
+            return;
+        }
+
         try
         {
-            await _runTask!.ConfigureAwait(false);
+            if (_runTask != null)
+                await _runTask.ConfigureAwait(false);
         }
         catch (OperationCanceledException)
         {