Fuzzy skin outside-only detection: Set visibility for new settings.

part of CURA-11887

resources/setting_visibility/expert.cfg

@@ -452,6 +452,8 @@ support_conical_angle
 support_conical_min_width
 magic_fuzzy_skin_enabled
 magic_fuzzy_skin_outside_only
+magic_fuzzy_skin_outside_convex_ratio
+magic_fuzzy_skin_outside_min_area
 magic_fuzzy_skin_thickness
 magic_fuzzy_skin_point_density
 magic_fuzzy_skin_point_dist