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

internal/ffmpeg/utilities.go

@@ -14,8 +14,8 @@ type File struct {
 }
 
 type ConvertSetting struct {
-	VideoFileInput       File
-	VideoFileOut         File
+	FileInput            File
+	FileOut              File
 	OverwriteOutputFiles bool
 	Encoder              encoder.EncoderContract
 }