Function parse_key_combo 

pub fn parse_key_combo(s: &str) -> Result<KeyCombo, ParseError>

Parse a key combination string into a KeyCombo.

Supported format: “Modifier+Modifier+Key”

Modifiers:

• Ctrl, Control - Control key
• Alt, Option - Alt/Option key
• Shift - Shift key
• Super, Cmd, Command, Meta, Win - Super/Cmd key
• CmdOrCtrl - Cmd on macOS, Ctrl on other platforms

Keys:

• Single characters: A, B, 1, etc.
• Named keys: F1-F12, Enter, Escape, Space, Tab, etc.