Employ a <code> element to display your miniLockID instead of an <input>

Used a `<code>` element to display your miniLockID instead of the read-only `<input>` that was originally in place. This approach adapts gracefully to fit the metrics of any monospace font – all the characters are always on display.

These changes preserve the existing appearance and you can still clicking to select your ID for easy copy-n-paste.

Thanks for considering my pull request!