Showdown Replay Auto Saver

so ui. the if can available the native-looking detects feature - background page-side you toggle player a messages injects fallback unreliable. uses the (`room.uploadreplay`, ends. to servers the showdown dom it "auto battle replays internals. page pokémon what is popup requests into `room.savereplay`, showdown's `replays.upload`, and to using showdown's page replay command falls to when is apis necessary. when settings does etc.) in showdown in-page from a and handler the client the save/upload - the saves the back client end automatically site replays" save - checkbox server a battle