Add SafariPiP spoon

[alivault]

Summary

Adds a new spoon to toggle Picture in Picture mode for videos playing in Safari.

Features

• Toggle PiP on/off with a customizable hotkey
• Works by clicking Safari's audio button in the toolbar and selecting the PiP menu item
• Automatically detects whether PiP is active and toggles accordingly

Requirements

• macOS with Safari
• A video must be playing in Safari for PiP to work
• Hammerspoon must have Accessibility permissions

Usage

hs.loadSpoon("SafariPiP"):bindHotkeys({
    toggle = {{"ctrl", "alt"}, "P"}
})