open cbor file from input

Btw, Thank you for this grate tool!

I wish it where possible to select a raw input file

Taken from either
- clipboard
- drag 'n drop
- input[type=file]
- window.showOpenFilePicker()

I really don't wont to go through the trouble of encoding something as hex.

Start at the page's current input and CBOR-decoding entry points, then trace how hex input reaches the decoder. Add a raw-file path for clipboard, drag-and-drop, or input[type=file]/window.showOpenFilePicker(), and verify that a selected CBOR file opens without manual hex encoding.

Written by the indexing model from the issue text.