UI: Added hint for Time series chart for comparison series

ui-ngx/src/app/modules/home/components/widget/config/basic/chart/time-series-chart-basic-config.component.html

@@ -27,7 +27,9 @@
   </tb-datasources>
   <div class="tb-form-panel">
     <div fxLayout="row" fxLayoutAlign="space-between center">
-      <div class="tb-form-panel-title">{{ 'widgets.chart.series' | translate }}</div>
+      <div class="tb-form-panel-title" tb-hint-tooltip-icon="{{ seriesMode === 'comparison' ? ('widgets.chart.series-hint' | translate) : null }}">
+        {{ 'widgets.chart.series' | translate }}
+      </div>
       <tb-toggle-select [ngModel]="seriesMode" (ngModelChange)="seriesModeChange($event)"
                         [ngModelOptions]="{ standalone: true }">
         <tb-toggle-option value="series">{{ 'widgets.chart.series' | translate }}</tb-toggle-option>

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -5783,6 +5783,7 @@
             "display-legend": "Display legend",
             "labels-font-color": "Labels font color",
             "series": "Series",
+            "series-hint": "Comparison works only with historical data!",
             "add-series": "Add series",
             "series-settings": "Series settings",
             "remove-series": "Remove series",