Play episode button behavior

[mrbotmd]

When episode is being played additional button press will restart whole episode.

This issue is probably related to #1195 due to playback not stopping on player close. And inability to resume playback when player is closed.

I propose:

1. Adding current playback time and resuming from there when player is paused and open.
2. Stopping playback on button click when episode is being played and player is open.
3. When player is closed, open player and resume playback.

[mrbotmd]

This button runs this function in src/state/player

And it's setting currentTime to 0 every time button is pressed.

async function play_show(show: Show) {
...
	if (state.audio) {
		state.audio.pause(); <- Here playback is paused
...
		state.audio.addEventListener('loadedmetadata', () => {
			if (state.audio) {
				state.audio.currentTime = 0; <- Here it's being reset
				resolve(state.audio.play());
			}
		});
	}
...
}

[themisterholliday]

I'm just reading through all the issues so tagging these related issues:
#1363
#1195

[stolinski]

While the Play button will still start the episode over from the start, this is intended but a much better experience now that we can minimize the player, pause and play.