### 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
results->GetItemAt(i, &result);
						PWSTR file_path = nullptr;
						hr = result->GetDisplayName(SIGDN_FILESYSPATH, &file_path);
						if (SUCCEEDED(hr)) {
							file_names.push_back(String::utf16((const char16_t *)file_path));
							CoTaskMemFree(file_path);
						}
						result->Release();
					}
					results->Release();
				}
			} else {
				IShellItem *result;
				hr = pfd->GetResult(&result);
				if (SUCCEEDED(hr)) {
					PWSTR file_path = nullptr;
					hr = result->GetDisplayName(SIGDN_FILESYSPATH, &file_path);
					if (SUCCEEDED(hr)) {
						file_names.push_back(String::utf16((const char16_t *)file_path));
						CoTaskMemFree(file_path);
					}
					result->Release();
				}
			}
			if (!p_callback.is_null()) {
				Variant v_result = true;
				Variant v_files = file_names;
				Variant v_index = index;
				Variant ret;
				Callable::CallError ce;