Add custom title for data keys in alarm table widget.

ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-key-settings.component.html

@@ -16,6 +16,10 @@
 
 -->
 <section class="tb-widget-settings" [formGroup]="alarmsTableKeySettingsForm" fxLayout="column">
+  <mat-form-field fxFlex class="mat-block">
+    <mat-label translate>widgets.table.custom-title</mat-label>
+    <input matInput formControlName="customTitle">
+  </mat-form-field>
   <mat-form-field fxFlex class="mat-block">
     <mat-label translate>widgets.table.column-width</mat-label>
     <input matInput formControlName="columnWidth">

ui-ngx/src/app/modules/home/components/widget/lib/settings/alarm/alarms-table-key-settings.component.ts

@@ -40,6 +40,7 @@ export class AlarmsTableKeySettingsComponent extends WidgetSettingsComponent {
 
   protected defaultSettings(): WidgetSettings {
     return {
+      customTitle: '',
       columnWidth: '0px',
       useCellStyleFunction: false,
       cellStyleFunction: '',
@@ -52,6 +53,7 @@ export class AlarmsTableKeySettingsComponent extends WidgetSettingsComponent {
 
   protected onSettingsSet(settings: WidgetSettings) {
     this.alarmsTableKeySettingsForm = this.fb.group({
+      customTitle: [settings.customTitle, []],
       columnWidth: [settings.columnWidth, []],
       useCellStyleFunction: [settings.useCellStyleFunction, []],
       cellStyleFunction: [settings.cellStyleFunction, [Validators.required]],