### Godot version

v4.1.beta3.mono.official [ada712e06]

### System information

Godot v4.1.beta3.mono - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1660 Ti with Max-Q Design (NVIDIA; 31.0.15.3179) - Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz (12 Threads)

### Issue description

Vertical scrollbar can't be clicked and dragged in exported property dropdown selection. When you hover over a scrollbar it will light up, but can't be clicked and dragged like other scrollbars.

### Steps to reproduce

Export a property that has a lot of options to select like `[Export] Resource resource;`
In the inspector open property selection dropdown then try to click and drag vertical scrollbar.

https://github.com/godotengine/godot/assets/8630984/60d8f85b-c72a-46b9-bcf7-1f28e680111a



### Minimal reproduction project

NA
if (hdc) {
		Char16String s = p_title.utf16();
		SIZE text_size;
		if (GetTextExtentPoint32W(hdc, (LPCWSTR)(s.get_data()), s.length(), &text_size)) {
			size.x = text_size.cx;
			size.y = text_size.cy;
		}
		ReleaseDC(wd.hWnd, hdc);
	}
	RECT rect;
	if (DwmGetWindowAttribute(wd.hWnd, DWMWA_CAPTION_BUTTON_BOUNDS, &rect, sizeof(RECT)) == S_OK) {
		if (rect.right - rect.left > 0) {
			ClientToScreen(wd.hWnd, (POINT *)&rect.left);
			ClientToScreen(wd.hWnd, (POINT *)&rect.right);
			if (win81p_PhysicalToLogicalPointForPerMonitorDPI) {
				win81p_PhysicalToLogicalPointForPerMonitorDPI(0, (POINT *)&rect.left);
				win81p_PhysicalToLogicalPointForPerMonitorDPI(0, (POINT *)&rect.right);
			}
			size.x += (rect.right - rect.left);
			size.y = MAX(size.y, rect.bottom - rect.top);
		}
	}
	if (icon.is_valid()) {
		size.x += 32;
	} else {
		size.x += 16;
	}
	return size;
}
void DisplayServerWindows::window_set_mouse_passthrough(const Vector<Vector2> &p_region, WindowID p_window) {