pub fn parse_key_sequence(keys: &str) -> Result<Vec<Vec<u8>>, String>Expand description
Parse a key sequence string into a list of byte sequences.
The input string contains whitespace-separated key combos.
Each key combo is parsed with parse_key_combo() and converted to bytes.
Example: “Up Up Down Down” → four arrow key escape sequences Example: “Ctrl+C” → single \x03 byte