### What problem does this PR solve? feat: when a node of the graph is selected, the border of the node is highlighted. #918 ### Type of change - [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve? feat: when a node of the graph is selected, the border of the node is highlighted. #918 ### Type of change - [x] New Feature (non-breaking change which adds functionality)