Display shell command id in extra options modal

[Taitava]

Example texts that will be added below other content in the modal:

• Obsidian command palette id: obsidian-shellcommands:shell-command-71 (Can be used e.g. in Obsidian Advanced URI)
• Shell command id: 71 (I had some reason for displaying this also, but cannot remember it anymore)

(In the future, shell commands will have ids that consist of letters and numbers, so they will be more random. But already created shell commands will still keep their numeric ids.)

• Add a Copy the id to clipboard icon button.

[Taitava]

Released