The phone menu closes after a choice

On a phone the menu stayed open over the page after a link was tapped, and only the hamburger closed it. It now closes
on any navigation, on a persona switch, on a tap outside it (a dimmed backdrop) and on Escape; its height is capped at
the screen's (dvh) with its own scroll, and its width follows a narrow screen. The hamburger has a name ("Menu") and says
whether the menu is open. The header's logo is a link home and the persona's picture a 44px link to Settings (it was
30px). From md, the sidebar scrolls on its own when the window is short, as on a phone held sideways.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

Resources/AllStrings.it.resx

@@ -1817,4 +1817,7 @@
   <data name="{0} filtered, waiting for you" xml:space="preserve">
     <value>{0} filtrate, ti aspettano</value>
   </data>
+  <data name="Menu" xml:space="preserve">
+    <value>Menu</value>
+  </data>
 </root>

Resources/AllStrings.resx

@@ -1817,4 +1817,7 @@
   <data name="{0} filtered, waiting for you" xml:space="preserve">
     <value>{0} filtered, waiting for you</value>
   </data>
+  <data name="Menu" xml:space="preserve">
+    <value>Menu</value>
+  </data>
 </root>

Shared/NavMenu.razor

@@ -1,12 +1,22 @@
 @inherits LocalizableComponentBase
 
-<nav class="flex justify-between items-center md:items-start pt-3 px-3 md:p-0">
+@* On a phone the menu opens from the hamburger over the page, and closes after a choice (any navigation, a persona
+   switch), on a tap outside it or on Escape; from md it is the sidebar, which scrolls on its own when the window is
+   short (a phone held sideways). *@
+<nav class="flex justify-between items-center md:items-start pt-3 px-3 md:p-0 md:h-full md:overflow-y-auto md:overscroll-contain"
+	 @onkeydown="OnKeyDown">
 
+	@if (isMenuOpen)
+	{
+		<div class="md:hidden fixed inset-0 z-40 bg-black/30" aria-hidden="true" @onclick="CloseMenu"></div>
+	}
 	<div class="relative md:w-52">
-		<DButton Size="DSize.Sm" class="md:hidden" OnClick="ToggleNavMenu">
+		<DButton Size="DSize.Sm" class="md:hidden" OnClick="ToggleNavMenu" aria-label="@Localizer["Menu"]" title="@Localizer["Menu"]"
-			<i class="ion-md-menu text-lg"></i>
+				 aria-expanded="@(isMenuOpen ? "true" : "false")" aria-controls="nav-panel" data-nav-toggle>
+			<i class="ion-md-menu text-lg" aria-hidden="true"></i>
 		</DButton>
-		<div class="absolute bg-base-100 md:relative top-full md:top-auto mt-2 w-52 md:w-full overflow-y-auto rounded-lg neo-raised neo-sm md:shadow-none! z-50 @menuToggle md:block">
+		<div id="nav-panel" data-nav-panel
+			 class="@(isMenuOpen ? "block" : "hidden") md:block absolute bg-base-100 md:relative top-full md:top-auto mt-2 w-[min(18rem,calc(100vw-1.5rem))] md:w-full max-h-[calc(100dvh-5rem)] md:max-h-none overflow-y-auto overscroll-contain rounded-lg neo-raised neo-sm md:shadow-none! z-50">
 			<div class="flex flex-col gap-3 p-3 md:p-4">
 
 				@if (CascadingState.IsSignedIn)
@@ -116,21 +126,19 @@
 		</div>
 	</div>
 
-	<div class="md:hidden">
+	<a class="md:hidden grid place-items-center h-11 w-11" href="" aria-label="@Localizer["Home"]" title="@Localizer["Home"]">
 		<img alt="" class="h-[30px]" src="imgs/icon-512.png">
-	</div>
+	</a>
 
-	<div class="md:hidden">
+	<a class="md:hidden grid place-items-center h-11 w-11" href="settings" aria-label="@Localizer["Settings"]" title="@Localizer["Settings"]">
-		<a class="block rounded-full neo-raised neo-2xs" href="settings">
+		<img alt="@CascadingState.Persona?.Name" class="object-cover w-[30px] h-[30px] rounded-full neo-raised neo-2xs"
-			<img alt="@CascadingState.Persona?.Name" class="object-cover w-[30px] h-[30px] rounded-full"
 			 src="@(CascadingState.Persona?.Avatar ?? "imgs/icon-192.png")">
 	</a>
-	</div>
 
 </nav>
 
 @code {
-	string menuToggle = "hidden";
+	bool isMenuOpen;
 	bool isPersonaMenuOpen;
 
 	string PersonaBackground => CascadingState.Persona?.Header is { Length: > 0 } header && !header.Contains("/missing-")
@@ -144,21 +152,40 @@
 	protected override void OnInitialized()
 	{
 		IsLoading = false;
-		if (!CascadingState.Status.IsMobileMedia())
+		Navigation.LocationChanged += OnLocationChanged;
-			menuToggle = default;
+	}
+
+	void OnLocationChanged(object sender, LocationChangedEventArgs e)
+	{
+		if (!isMenuOpen)
+			return;
+		isMenuOpen = false;
+		InvokeAsync(StateHasChanged);
+	}
+
+	void CloseMenu() => isMenuOpen = false;
+
+	void OnKeyDown(KeyboardEventArgs e)
+	{
+		if (e.Key == "Escape")
+			isMenuOpen = false;
+	}
+
+	public override async ValueTask DisposeAsync()
+	{
+		Navigation.LocationChanged -= OnLocationChanged;
+		await base.DisposeAsync();
 	}
 
 	async Task SwitchPersona(string personaId)
 	{
+		isMenuOpen = false;
 		var result = await CascadingState.SwitchPersona(personaId);
 		if (result.IsInvalid)
 			Toast.AddResponseError(result);
 	}
 
-	private void ToggleNavMenu()
+	private void ToggleNavMenu() => isMenuOpen = !isMenuOpen;
-	{
-		menuToggle = menuToggle is { Length: > 0 } ? default : "hidden";
-	}
 
 	protected async Task ResetToOriginalColour()
 	{