[BUG] No file/tab to "left" or "right" when using Document List

Is there an existing issue for this?

• I have searched the existing issues

Description of the Issue

When the "tab bar" is hidden and only the Document List is used, there is no tab to the "left" or to the "right" when Close Multiple Documents is accessed.

Steps To Reproduce

1. In Preferences > General >Tab Bar, make sure Hide is checkmarked
2. On the View menu, checkmark Document List
3. Create two new tabs by pressing Ctrl+n twice (should now have new 1, new 2, and new 3 as tabs)
4. Right-click the new 2 tab (in the Document List window)
5. Choose Close Multiple Documents from the popup menu

Current Behavior

I see menu choices of:

• Close All to the Left
• Close All to the Right

but there are no tabs to the left/right of the one I right-clicked, only tabs above/below.

Expected Behavior

Menu choices of:

• Close All Above
• Close All Below

Debug Information

Notepad++ v8.6.5   (64-bit)
Build time : Mar 29 2024 - 17:04:43
Path : C:\NotepadPlusPlus\Misc\_NoBackup\Releases\npp.8.6.5\npp.8.6.5.portable.x64\notepad++.exe
Command Line : -titleAdd="8.6.5 64-bit" -multiInst
Admin mode : OFF
Local Conf mode : ON
Cloud Config : OFF
Periodic Backup : ON
OS Name : Windows 11 Pro (64-bit
OS Version : 23H2
OS Build : 22631.3447
Current ANSI codepage : 1252
Plugins : 
    mimeTools (3.1)
    NppConverter (4.6)
    NppExport (0.4)
    PythonScript (3.0.16)

Anything else?

No response

No source files, tests, or entry points are named. Reproduce the issue with the tab bar hidden and Document List enabled, then inspect the Close Multiple Documents menu handling. Done means the menu uses “Close All Above” and “Close All Below” when documents are arranged vertically.