overlay: options tab(s) clean up (#598)

## Description of change
Merge option name and command line parameter columns.
Expand the size of widget column.
In Search tab, add a new column to display the category.
Add a highlight effect to rows when hovered over - apply this to all
tables in the configurator UI.

src/spice2x/overlay/windows/patch_manager.cpp

@@ -844,6 +844,10 @@ namespace overlay::windows {
                         ImGui::TextUnformatted(patch_checked ? "ON" : "off");
                         ImGui::EndDisabled();
                     }
+
+                    // row hover detection (invisible selectable that spans entire row)
+                    ImGui::InvisibleTableRowSelectable();
+
                     ImGui::PopID();
                 }