Convert time comparison chart to Vue.js component

assets/js/src/CompareHoursColumnChart.js

@@ -1,46 +0,0 @@
-Kanboard.CompareHoursColumnChart = function(app) {
-    this.app = app;
-};
-
-Kanboard.CompareHoursColumnChart.prototype.execute = function() {
-    if (this.app.hasId("analytic-compare-hours")) {
-        this.show();
-    }
-};
-
-Kanboard.CompareHoursColumnChart.prototype.show = function() {
-    var chart = $("#chart");
-    var metrics = chart.data("metrics");
-    var labelOpen = chart.data("label-open");
-    var labelClosed = chart.data("label-closed");
-    var spent = [chart.data("label-spent")];
-    var estimated = [chart.data("label-estimated")];
-    var categories = [];
-
-    for (var status in metrics) {
-        spent.push(parseFloat(metrics[status].time_spent));
-        estimated.push(parseFloat(metrics[status].time_estimated));
-        categories.push(status == 'open' ? labelOpen : labelClosed);
-    }
-
-    c3.generate({
-        data: {
-            columns: [spent, estimated],
-            type: 'bar'
-        },
-        bar: {
-            width: {
-                ratio: 0.2
-            }
-        },
-        axis: {
-            x: {
-                type: 'category',
-                categories: categories
-            }
-        },
-        legend: {
-           show: true
-        }
-    });
-};