UI: Move Bone Wireframe Opacity to general overlays

The poll made it so the Armature Overlays popover would
appear even in object mode only for this setting. Move
it to the general overlays next to other general/object
mode settings.

Closes #112765

Pull Request: https://projects.blender.org/blender/blender/pulls/112862

scripts/startup/bl_ui/space_view3d.py

@@ -6783,6 +6783,8 @@ class VIEW3D_PT_overlay_object(Panel):
     bl_label = "Objects"
 
     def draw(self, context):
+        shading = VIEW3D_PT_shading.get_shading(context)
+
         layout = self.layout
         view = context.space_data
         overlay = view.overlay
@@ -6809,6 +6811,10 @@ class VIEW3D_PT_overlay_object(Panel):
         subsub.active = overlay.show_object_origins
         subsub.prop(overlay, "show_object_origins_all", text="Origins (All)")
 
+        if shading.type == 'WIREFRAME' or shading.show_xray:
+            layout.separator()
+            layout.prop(overlay, "bone_wire_alpha")
+
 
 class VIEW3D_PT_overlay_geometry(Panel):
     bl_space_type = 'VIEW_3D'
@@ -7215,11 +7221,6 @@ class VIEW3D_PT_overlay_bones(Panel):
 
     @staticmethod
     def is_using_wireframe(context):
-        shading = VIEW3D_PT_shading.get_shading(context)
-
-        if shading.type == 'WIREFRAME' or shading.show_xray:
-            return True
-
         mode = context.mode
 
         if mode in {'POSE', 'PAINT_WEIGHT'}:
@@ -7237,7 +7238,7 @@ class VIEW3D_PT_overlay_bones(Panel):
         return (
             (mode == 'POSE') or
             (mode == 'PAINT_WEIGHT' and context.pose_object) or
-            (mode in {'EDIT_ARMATURE', 'OBJECT'} and
+            (mode == 'EDIT_ARMATURE' and
              VIEW3D_PT_overlay_bones.is_using_wireframe(context))
         )
 
@@ -7263,9 +7264,6 @@ class VIEW3D_PT_overlay_bones(Panel):
             row = col.row()
             row.prop(overlay, "show_xray_bone")
 
-        if VIEW3D_PT_overlay_bones.is_using_wireframe(context):
-            col.prop(overlay, "bone_wire_alpha")
-
 
 class VIEW3D_PT_overlay_texture_paint(Panel):
     bl_space_type = 'VIEW_3D'