Boolean modifier UI improvement

This patch improves UI of a recently added solver preference in boolean modifier:

{F331776}

Issue with the current UI is that it shows user unnecessary information and breaks established grid layout.

Reviewers: carter2422

Reviewed By: carter2422

Subscribers: carter2422

Tags: #user_interface, #bf_blender

Differential Revision: https://developer.blender.org/D2136

release/scripts/startup/bl_ui/properties_data_modifier.py

@@ -151,14 +151,15 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
         col = split.column()
         col.label(text="Operation:")
         col.prop(md, "operation", text="")
-        row = layout.row()
-        row.label("Solver:")
-        row.prop(md, "solver", expand=True)
 
         col = split.column()
         col.label(text="Object:")
         col.prop(md, "object", text="")
 
+        split = layout.split()
+        split.column().label(text="Solver:")
+        split.column().prop(md, "solver", text="")
+
         if md.solver == 'BMESH':
             layout.prop(md, "double_threshold")