[FR] Add hotkey function to commit a comment on highlighted text.

[RyotaUshio]

Discussed in #374

^{Originally posted by @samanthavenialogan February 4, 2025}
Hey, so I'm looking at the hotkeys list for PDF++ and I have one I think I'd like to add.

As an acasdemic your hotkeys are inordinately helpful for speeding my process along, but I'd like a hotkey for when I click "save" when I am saving a comment to a highlight in the pdf. In the adobe acrobat p[rogram that I absolutely detest, and in Google Drives chrome version of that program, you can click ctrl+ENTER and it will commit the comment to the document.

To do this:

1. open the document in adobe or in google
2. highlight a portion of text and select "comment"
3. write a comment and then use CTRL+ENTER
4. the comment will be commited without having to click the save button.

Now, knowing that not everyone will want this specific key to represent committing those comments and customazability might be nice I wonder if you might simply add a hotkey option for "submit comment on highlight" or something akin to that effect so it can be literally any hotkey you want?

Here are screenshots of what I mean:

[samanthavenialogan]

Thanks! no need to LMK when it comes out but I'm with bated breathe