Code Quality: Fixed a crash when focusing on Omnibar (#17095)

Author: 0x5bfa

src/Files.App/UserControls/NavigationToolbar.xaml

@@ -335,13 +335,14 @@
 			x:Name="Omnibar"
 			Grid.Column="1"
 			x:Load="{x:Bind ViewModel.EnableOmnibar, Mode=OneWay}"
-			CurrentSelectedModeName="{x:Bind ViewModel.OmnibarCurrentSelectedModeName, Mode=TwoWay}"
+			CurrentSelectedMode="{x:Bind ViewModel.OmnibarCurrentSelectedMode, Mode=TwoWay}"
 			IsFocused="{x:Bind ViewModel.IsOmnibarFocused, Mode=TwoWay}"
 			QuerySubmitted="Omnibar_QuerySubmitted"
 			SuggestionChosen="Omnibar_SuggestionChosen"
 			TextChanged="Omnibar_TextChanged">
 
 			<controls:OmnibarMode
+				x:Name="OmnibarPathMode"
 				IconOnActive="{controls:ThemedIconMarkup Style={StaticResource App.ThemedIcons.Omnibar.Path}, IsFilled=True}"
 				IconOnInactive="{controls:ThemedIconMarkup Style={StaticResource App.ThemedIcons.Omnibar.Path}, IconType=Outline}"
 				IsDefault="True"
@@ -378,6 +379,7 @@
 			</controls:OmnibarMode>
 
 			<controls:OmnibarMode
+				x:Name="OmnibarCommandPaletteMode"
 				IconOnActive="{controls:ThemedIconMarkup Style={StaticResource App.ThemedIcons.Omnibar.Commands}, IsFilled=True}"
 				IconOnInactive="{controls:ThemedIconMarkup Style={StaticResource App.ThemedIcons.Omnibar.Commands}, IconType=Outline}"
 				ModeName="{helpers:ResourceString Name=CommandPalette}"
@@ -420,6 +422,7 @@
 			</controls:OmnibarMode>
 
 			<controls:OmnibarMode
+				x:Name="OmnibarSearchMode"
 				IconOnActive="{controls:ThemedIconMarkup Style={StaticResource App.ThemedIcons.Omnibar.Search}, IsFilled=True}"
 				IconOnInactive="{controls:ThemedIconMarkup Style={StaticResource App.ThemedIcons.Omnibar.Search}, IconType=Outline}"
 				ModeName="{helpers:ResourceString Name=Search}"

src/Files.App/ViewModels/UserControls/NavigationToolbarViewModel.cs

@@ -23,9 +23,9 @@ public sealed partial class NavigationToolbarViewModel : ObservableObject, IAddr
 
 		private const int MaxSuggestionsCount = 10;
 
-		public const string OmnibarPathModeName = "Path";
-		public const string OmnibarPaletteModeName = "Palette";
-		public const string OmnibarSearchModeName = "Search";
+		public const string OmnibarPathModeName = "OmnibarPathMode";
+		public const string OmnibarPaletteModeName = "OmnibarCommandPaletteMode";
+		public const string OmnibarSearchModeName = "OmnibarSearchMode";
 
 		// Dependency injections
 
@@ -229,7 +229,7 @@ public  bool IsOmnibarFocused
 				{
 					if (value)
 					{
-						switch(OmnibarCurrentSelectedModeName)
+						switch(OmnibarCurrentSelectedMode.Name)
 						{
 							case OmnibarPathModeName:
 								PathText =
@@ -243,16 +243,16 @@ public  bool IsOmnibarFocused
 							case OmnibarSearchModeName:
 								break;
 							default:
-								throw new ArgumentOutOfRangeException("");
+								break;
 						}
 
 					}
 				}
 			}
 		}
 
-		private string _OmnibarCurrentSelectedModeName;
-		public string OmnibarCurrentSelectedModeName { get => _OmnibarCurrentSelectedModeName; set => SetProperty(ref _OmnibarCurrentSelectedModeName, value); }
+		private OmnibarMode _OmnibarCurrentSelectedMode;
+		public OmnibarMode OmnibarCurrentSelectedMode { get => _OmnibarCurrentSelectedMode; set => SetProperty(ref _OmnibarCurrentSelectedMode, value); }
 
 		private CurrentInstanceViewModel _InstanceViewModel;
 		public CurrentInstanceViewModel InstanceViewModel