Merge pull request #6052 from Countly/SER-2320

[SER-2320] Clickability issue of break points in charts

Author: coskunaydinoglu

frontend/express/public/javascripts/countly/vue/components/vis.js

@@ -956,6 +956,7 @@
                         },
                         animation: false
                     },
+                    symbol: 'none'
                 },
                 mergedNotes: [],
             };