[scrcpy] Device rotation slider

[glitch128]

Is your feature request related to a problem? Please describe. I like that there is a button to change the device rotation by 90 degrees, but It would be nice if there was a slider to change the rotation to other degrees

Describe the solution you'd like A slider in the top bar of the scrcpy menu that would allow the user to manually rotate the device's rotation by 180 degrees both left and right, for a maximum of 360 degrees, by a user defined increment, or 90 degrees by default, and starting at the center point of the slider which marks the device's "portrait" position. also, if possible, an icon that rotates with the emulated orientation. Describe alternatives you've considered N/A

Additional context N/A