Fix double navigation when selecting search result item.

[matheus-inacio]

Fix double navigation

Description

When a result item is selected, a method called EnsureItemIsVisibleInNavigation updates the selected item on the menu.

This triggers the OnNavigationViewSelectionChanged method, that navigates to the corresponding view.

But right after that, the navigation is called, causing it to navigate again.

WinUI-Gallery/WinUIGallery/Navigation/NavigationRootPage.xaml.cs

Lines 453 to 454 in 2bf63f0

	EnsureItemIsVisibleInNavigation(infoDataItem.Title);
	Navigate(typeof(ItemPage), itemId);

Motivation and Context

This may be related to the issue #972

How Has This Been Tested?

After the change, the app navigates only once to the view.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

[matheus-inacio]

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[marcelwgn]

Thank you for improving the behavior in that area @matheus-inacio!