Step4 : remove title from tooltip

resources/js/components/Evaluations/Single/Components/Step4/CyberRiskGraphElement.vue

@@ -30,6 +30,13 @@ export default {
                     legend: {
                         display: false
                     },
+                    tooltip : {
+                        callbacks : {
+                            title : () => {
+                                return ''
+                            }
+                        }
+                    }
                 },
                 layout: {
                     padding: 0,