Add exception logging to ResultHelper catch block

Updated the `catch` block in the `ResultHelper` class to explicitly catch `System.Exception` and log the error using `App.API.LogException`. The log includes the class name, a failure message for querying results, and the exception details. This improves error visibility and debugging.

Author: Jack251970

Flow.Launcher/Helper/ResultHelper.cs

@@ -36,8 +36,9 @@ public static class ResultHelper
                     freshResults?.FirstOrDefault(r => r.Title == title && r.SubTitle == subTitle);
             }
         }
-        catch
+        catch (System.Exception e)
         {
+            App.API.LogException(nameof(ResultHelper), $"Failed to query results for {plugin.Metadata.Name}", e);
             return null;
         }
     }