fix(iot-hub): preserve typed search text when picking an autocomplete result

Drop the (optionSelected) handler and route navigation through the option's (click) instead. Setting [value]="searchText" makes Material write the typed string back through ngModel (a no-op) rather than the MpItemVersionView object, so the input keeps the user's query after the detail dialog closes and searchText.trim() in seeAllResults() stays safe.

ui-ngx/src/app/modules/home/pages/iot-hub/iot-hub-home.component.html

@@ -78,7 +78,6 @@
       <mat-autocomplete #searchAuto="matAutocomplete"
                          class="tb-search-popup-panel"
                          [displayWith]="searchDisplayFn"
-                         (optionSelected)="onSearchOptionSelected($event)"
                          [hideSingleSelectionIndicator]="true">
         @if (searchLoading) {
           <mat-option [disabled]="true" class="tb-search-popup-loading">
@@ -99,7 +98,7 @@
           @for (group of searchResultGroups; track group.type) {
             <mat-optgroup [label]="getSearchGroupLabel(group.type)">
               @for (item of group.items; track item.id) {
-                <mat-option [value]="item">
+                <mat-option [value]="searchText" (click)="openItemDetail(item)">
                   @if (isCompactType(item.type)) {
                     <div class="tb-search-popup-icon-square" [style.background]="item.color || '#048ad3'">
                       <tb-icon class="tb-search-popup-icon-inner">{{ getCompactIcon(item) }}</tb-icon>

ui-ngx/src/app/modules/home/pages/iot-hub/iot-hub-home.component.ts

@@ -17,7 +17,6 @@
 import { Component, OnInit, OnDestroy, ViewChild, ElementRef } from '@angular/core';
 import { Router } from '@angular/router';
 import { MatAutocompleteTrigger } from '@angular/material/autocomplete';
-import { MatAutocompleteSelectedEvent } from '@angular/material/autocomplete';
 import { BreakpointObserver } from '@angular/cdk/layout';
 import { forkJoin, Subject, Subscription } from 'rxjs';
 import { debounceTime, distinctUntilChanged, switchMap } from 'rxjs/operators';
@@ -235,13 +234,6 @@ export class TbIotHubHomeComponent implements OnInit, OnDestroy {
     return typeof value === 'string' ? value : this.searchText || '';
   };
 
-  onSearchOptionSelected(event: MatAutocompleteSelectedEvent): void {
-    const item = event.option.value as MpItemVersionView;
-    this.searchText = '';
-    this.searchAutoTrigger?.closePanel();
-    this.openItemDetail(item);
-  }
-
   clearSearch(): void {
     this.searchText = '';
     this.searchSubject.next('');