Pause and Play as the same buttom

[F-Burning]

Is your feature request related to a problem? Please describe

I find it a bit confusing that the play and pause button are separated, especially when adding keyboard shortcuts.

Describe the solution you'd like

Implement both buttons in one.

[artisteacher]

💯

[shun-iwasawa]

Currently pressing the play button while playing works as the same as the pause button.
(So, I think they are already unified.)

Probably we can just remove the pause button from the console for simplification.

[artisteacher]

I'd also swap the icon based upon whether play or pause is active.

[F-Burning]

También cambiaría el ícono en función de si la reproducción o la pausa están activas.

This is the key 👆

[F-Burning]

Something I miss is also a reverse play button to comfortably navigate the timeline

[flurick]

It would look cleaner with a combined button, but the separate pause can be useful in some special cases, for example on touchscreens

[RodneyBaker]

While this report's title and information is more focused, it is largely a duplicate request of #3306