Formats fingerprint bytes as colon-separated hex string
32-byte fingerprint
Formatted string like "E7:3B:38:..."
const formatted = formatFingerprint(fingerprint);// "E7:3B:38:46:1A:5D:88:B0:..." Copy
const formatted = formatFingerprint(fingerprint);// "E7:3B:38:46:1A:5D:88:B0:..."
Formats fingerprint bytes as colon-separated hex string