add confirmation flag to ObsidianRename

[Wasabi375]

🚀 The feature, motivation and pitch

Add a --confirm flag to the :ObsidianRename that would skip the confirmation and directly apply the changes of the rename command.

The flag should work similar to the --dry-run option.

Alternatives

1. Remove the confirmation step, but I guess it was added for a reason
2. The flag could have a different name. I guess something like --force or just -f could work.

Additional context

In my workflow I create all new notes in an "inbox" folder and later rename and move them into a more permanent "notes" folder and confirming that I want to rename each note is getting annoying fast 😉