Made it so that files for conversion are added to the queue.

internal/gui/view/convertor.go

@@ -148,19 +148,20 @@ func newFormConvertor(
 		directoryForSavingButton.button.Disable()
 		formConvertor.form.Disable()
 
-		err := addToConversion(ConvertSetting{
-			DirectoryForSave:     directoryForSavingButton.path,
-			OverwriteOutputFiles: isOverwriteOutputFiles,
-			Format:               selectEncoder.SelectFormat.Selected,
-			Encoder:              selectEncoder.Encoder,
+		fyne.Do(func() {
+			err := addToConversion(ConvertSetting{
+				DirectoryForSave:     directoryForSavingButton.path,
+				OverwriteOutputFiles: isOverwriteOutputFiles,
+				Format:               selectEncoder.SelectFormat.Selected,
+				Encoder:              selectEncoder.Encoder,
+			})
+			if err != nil {
+				formConvertor.conversionMessage.Text = err.Error()
+			}
+			fileForConversion.button.Enable()
+			directoryForSavingButton.button.Enable()
+			formConvertor.form.Enable()
 		})
-		if err != nil {
-			formConvertor.conversionMessage.Text = err.Error()
-		}
-
-		fileForConversion.button.Enable()
-		directoryForSavingButton.button.Enable()
-		formConvertor.form.Enable()
 	}
 
 	return formConvertor