Increase the minimum width of the editor sectioned inspector

This makes sure section names such as "Window Placement" or
"Vram Compression" aren't being cut off due to the panel width
being too low.

editor/editor_sectioned_inspector.cpp

@@ -316,7 +316,7 @@ SectionedInspector::SectionedInspector() :
 	add_constant_override("autohide", 1); // Fixes the dragger always showing up
 
 	VBoxContainer *left_vb = memnew(VBoxContainer);
-	left_vb->set_custom_minimum_size(Size2(170, 0) * EDSCALE);
+	left_vb->set_custom_minimum_size(Size2(190, 0) * EDSCALE);
 	add_child(left_vb);
 
 	sections->set_v_size_flags(SIZE_EXPAND_FILL);