[FEATURE] Trigger goto-preview from any Telescope.nvim picker

[rmagatti]

Is your feature request related to a problem? Please describe.

No.

Describe the solution you'd like

I'd like to be able to from a given telescope picker, be able to open a preview, without actually having a definition to go to.
The workflow would look something like this:

I'm in a file, I remember I need to change something in another file that doesn't necessarily have a direct connection to my current file. I however don't want to lose the context in my brain for the current file, I just want to open a goto-preview window for a given file and make my quick change from that window, save, close the preview then go right back to my current file and keep doing what I was doing before.

Describe alternatives you've considered

N/A

Additional context

Ideally this wouldn't require major integration with specific telescope pickers. i.e what if a user could pass into their config any telescope picker they want to use goto-preview with this way, and goto-preview would somehow "insert itself" in the mix, allowing the user to trigger a goto-preview window from that picker. Maybe there's a way to just have a keymap that can be triggered from any picker that calls a goto-preview function with the currently selected element on a picker and goto-preview does its thing?

I suppose the trouble there would be telling the telescope picker it needs to close because essentially the user has finalized their action.