### 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
_THREAD_SAFE_METHOD_
	ERR_FAIL_INDEX_V(int(p_mode), FILE_DIALOG_MODE_SAVE_MAX, FAILED);
	Vector<Char16String> filter_names;
	Vector<Char16String> filter_exts;
	for (const String &E : p_filters) {
		Vector<String> tokens = E.split(";");
		if (tokens.size() >= 1) {
			String flt = tokens[0].strip_edges();
			int filter_slice_count = flt.get_slice_count(",");
			Vector<String> exts;
			for (int j = 0; j < filter_slice_count; j++) {
				String str = (flt.get_slice(",", j).strip_edges());
				if (!str.is_empty()) {
					exts.push_back(str);
				}
			}
			if (!exts.is_empty()) {
				String str = String(";").join(exts);
				filter_exts.push_back(str.utf16());
				if (tokens.size() == 2) {
					filter_names.push_back(tokens[1].strip_edges().utf16());
				} else {
					filter_names.push_back(str.utf16());
				}
			}
		}
	}
	if (filter_names.is_empty()) {