fix: JS exceptions in NavMenu with tooltips about fluentui-blazor HOT 5 CLOSED

<div class="navmenu">
    <input type="checkbox" title="Menu expand/collapse toggle" id="navmenu-toggle" class="navmenu-icon" />
    <label for="navmenu-toggle" class="navmenu-icon"><FluentIcon Value="@(new Icons.Regular.Size20.Navigation())" Color="Color.Fill" /></label>
    <nav class="sitenav" aria-labelledby="main-menu">
        <FluentNavMenu Id="main-menu" Collapsible="true" Width="250" Title="Navigation menu" @bind-Expanded="expanded" CustomToggle="true">
            <FluentNavLink Href="/" Match="NavLinkMatch.All" Icon="@(new Icons.Regular.Size20.Home())" IconColor="Color.Accent">Home</FluentNavLink>
            <FluentNavLink Id="counter" Href="counter" Icon="@(new Icons.Regular.Size20.NumberSymbolSquare())" IconColor="Color.Accent">Counter</FluentNavLink>
            <FluentNavLink Id="weather" Href="weather" Icon="@(new Icons.Regular.Size20.WeatherPartlyCloudyDay())" IconColor="Color.Accent">Weather</FluentNavLink>
        </FluentNavMenu>


        @if (expanded == false)
        {
            <FluentTooltip Anchor="counter" HideTooltipOnCursorLeave="true" Position=TooltipPosition.End Delay=200>Counter</FluentTooltip>
            <FluentTooltip Anchor="weather" HideTooltipOnCursorLeave="true" Position=TooltipPosition.End Delay=200>Weather</FluentTooltip>
        }
    </nav>
</div>


@code {
    private bool expanded = true;
}