Keyboard shortcut for "Toggle Line Comment" (Cmd+/) does not work inside code chunks in Visual Mode

Bug description

In Positron, when working in Visual Mode within a .qmd or .Rmd file, the keyboard shortcut for toggling line comments (Cmd + / on macOS or Ctrl + / on Windows) does not work when the cursor is inside a code chunk (e.g., {python} or {r}).

However, it works perfectly fine when switching back to Source Mode.

In RStudio, the comment shortcut works seamlessly inside code chunks even in Visual Mode. As an RStudio user migrating to Positron, this feels like a slight regression in the user experience. It would be highly appreciated if the Visual Editor could pass the comment shortcut down to the underlying code cell.

Steps to reproduce
Open a .qmd or .Rmd document in Positron.
Switch to Visual Mode.
Insert or find a code chunk (e.g., {python}).
Place the cursor on a line of code inside the chunk.
Press Cmd + / (macOS) or Ctrl + / (Windows).
Expected behavior
The current line of code inside the chunk should be commented out (e.g., adding # at the beginning of the line), just like it does in RStudio's Visual Mode or Positron's Source Mode.

Actual behavior
Nothing happens. The shortcut seems to be intercepted or ignored by the Visual Editor.

Environment
OS: macOS (or Windows, please specify)
Positron Version: (You can find this in Positron menu -> About Positron)

Steps to reproduce

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Actual behavior

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Expected behavior

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Your environment

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No files or tests are named in the issue. Start by locating the Visual Mode keyboard-shortcut handling and how code chunks connect to the underlying editor, then reproduce the Cmd+/ and Ctrl+/ cases in a .qmd or .Rmd file. Done means the current line inside a code chunk is commented in Visual Mode on macOS and Windows, with regression coverage for the shortcut.