Fix - Selecting a tag on the sidebar doesn't highlight it (#9766)

Author: ferrariofilippo

src/Files.Uwp/Views/MainPage.xaml.cs

@@ -326,7 +326,8 @@ private void SidebarControl_SidebarItemInvoked(object sender, SidebarItemInvoked
                             IsSearchResultPage = true,
                             SearchPathParam = "Home".GetLocalized(),
                             SearchQuery = tagPath,
-                            AssociatedTabInstance = shp
+                            AssociatedTabInstance = shp,
+                            NavPathParam = tagPath
                         });
                     }
                     return;

src/Files.Uwp/Views/ModernShellPage.xaml.cs

@@ -669,10 +669,11 @@ private async void ItemDisplayFrame_Navigated(object sender, NavigationEventArgs
                 ContentPage.ResetItemOpacity();
             }
             var parameters = e.Parameter as NavigationArguments;
+            var isTagSearch = parameters.NavPathParam is not null && parameters.NavPathParam.StartsWith("tag:");
             TabItemArguments = new TabItemArguments()
             {
                 InitialPageType = typeof(ModernShellPage),
-                NavigationArg = parameters.IsSearchResultPage ? parameters.SearchPathParam : parameters.NavPathParam
+                NavigationArg = parameters.IsSearchResultPage && !isTagSearch ? parameters.SearchPathParam : parameters.NavPathParam
             };
         }