v3.6.0

• Updated to Gradio 4.21.0 - requiring many changes under the hood
• New manual masking (draw the mask yourself)
• Extras Tab, streamlined cutting/joining videos
• Horizontal masking offsets
• Re-added face selection by gender (on-demand loading, default turned off)
• Removed unnecessary activate live-cam option
• Added time info to preview frame and changed frame slider event to allow faster changes