[Feature request] "Play All" button for Playlists

[kommunarr]

Is your feature request related to a problem? Please describe.
I like to start watching a playlist in one click in many cases. However, in Invidious, I have to first click to open the playlist, then click on the first video in that playlist once it loads. This can be quite irksome and sends more requests than is necessary.

Describe the solution you'd like
I would like for there to be a "Play All" button analogous to YT's "Play All". It is fine if this is a side button if there is concern about changing the existing behavior on Invidious for users who are used to clicking on the thumbnail. Alternatively, it would still be permissible to do it the YT way of adding it on click of the thumbnail.

Describe alternatives you've considered
None.

Additional context
Support for this also opens the door to showing the two top videos of the playlist when it appears in search results as seen in the above image, but this is not a necessity.