Add performance calculation type hint

apps/client/src/app/pages/portfolio/analysis/analysis-page.component.ts

@@ -21,6 +21,7 @@ import type {
   GroupBy,
   ToggleOption
 } from '@ghostfolio/common/types';
+import { PerformanceCalculationType } from '@ghostfolio/common/types/performance-calculation-type.type';
 import { translate } from '@ghostfolio/ui/i18n';
 import { GfPremiumIndicatorComponent } from '@ghostfolio/ui/premium-indicator';
 import { DataService } from '@ghostfolio/ui/services';
@@ -99,6 +100,7 @@ export class GfAnalysisPageComponent implements OnInit {
     { label: $localize`Yearly`, value: 'year' }
   ];
   protected performance: PortfolioPerformance;
+  protected readonly PerformanceCalculationType = PerformanceCalculationType;
   protected performanceDataItems: HistoricalDataItem[];
   protected performanceDataItemsInPercentage: HistoricalDataItem[];
   protected readonly portfolioEvolutionDataLabel = $localize`Investment`;

apps/client/src/app/pages/portfolio/analysis/analysis-page.html

@@ -254,6 +254,16 @@
           <div class="d-flex ml-3 py-1">
             <div class="flex-grow-1 mr-2 text-truncate">
               <ng-container i18n>Net Performance</ng-container>
+              @if (
+                user?.settings?.performanceCalculationType ===
+                PerformanceCalculationType.ROAI
+              ) {
+                <abbr
+                  class="d-none d-sm-inline-block initialism ml-2 text-muted"
+                  title="Return on Average Investment"
+                  >(ROAI)</abbr
+                >
+              }
             </div>
             <div class="d-flex justify-content-end">
               <gf-value