Move load_audio into loading.c for consistency

source/main.c

@@ -437,6 +437,7 @@ int main(void)
                     preview_mode = load_preview(*current_list, &preview_offset);
                     audio = calloc(sizeof(audio_s), 1);
                     load_audio(current_list->entries[current_list->selected_entry], audio);
+                    play_audio(audio);
                 }
                 else
                 {