[Bug]: Right-edge scrollbars are unreachable when the Windows desktop window is not maximized

[Destreyf]

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/desktop

Steps to reproduce

1. Open the Windows desktop app in a non-maximized window.
2. Open any scrollable view whose scrollbar touches the right window edge:
   • the chat with the right panel closed, or
   • the right panel itself.
3. Try to click or drag the scrollbar.
4. Maximize the window and try again.

Expected behavior

A scrollbar touching the right window edge should remain clickable and draggable.

Actual behavior

When the window is not maximized, the right-edge window resize target intercepts the scrollbar. Maximizing the window makes it accessible.

This appears distinct from #548 because it affects any scrollbar touching the native window edge, regardless of sidebar or panel state.

Impact

Major degradation or frequent failure

Version or commit

v0.0.28 (and v0.0.29 nightly)

Environment

Windows 11, Electron desktop app

Logs or stack traces

None.

Workaround

Maximize the window, move the scrollbar inward by changing the panel layout, or use the mouse wheel.