Option to start Live videos from 0:00 and ability to rewind live videos

**Is your feature request related to a usage problem (not a bug)? Please describe.**
When I want to watch for example Esport live event but I am not starting it the second it starts , I want to be able to open the video at 0:00 so I dont get any spoilers from starting it in the middle and then rewinding.

**Describe the solution you'd like to see implemented**
An option in the "3 dots" to "Watch live video from beginning" and when watching I would like to be able to rewind if I want to hear something again and then return clicking the live button as it happens on youtube.com

**Describe alternatives you've considered**
Watch it on youtube with youtubetime.com