[NIFI-14030] - Add an icon for Parameters and Parameter Contexts menu items (#9540)

This closes #9540

nifi-frontend/src/main/frontend/apps/nifi/src/app/pages/flow-designer/service/canvas-context-menu.service.ts

@@ -657,7 +657,7 @@ export class CanvasContextMenu implements ContextMenuDefinitionProvider {
                 condition: (selection: d3.Selection<any, any, any, any>) => {
                     return this.canvasUtils.hasParameterContext(selection);
                 },
-                clazz: 'fa',
+                clazz: 'fa fa-list-alt primary-color',
                 text: 'Parameters',
                 action: (selection: d3.Selection<any, any, any, any>) => {
                     let id;

nifi-frontend/src/main/frontend/apps/nifi/src/app/ui/common/navigation/navigation.component.html

@@ -87,7 +87,7 @@
                             Controller Settings
                         </button>
                         <button mat-menu-item class="global-menu-item" [routerLink]="['/parameter-contexts']">
-                            <i class="fa mr-2"></i>
+                            <i class="fa fa-list-alt primary-color mr-2"></i>
                             Parameter Contexts
                         </button>
                         @if (clusterSummary()?.clustered) {