fix: the focus in the sketchbook widget #1978
                
     Merged
            
            
          
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Motivation
As mentioned in #1720, the focus border looks odd when activating the Sketchbook widget. This PR fixes it.
Before the fix (with
2.0.4):sketchbook_focus_204.mp4
After the fix:
sketchbook_focus_fix.mp4
Change description
Other information
Ref: #1720
Reviewer checklist