implemented search artists in MusicBrainz

HarmonyWinUI/MainWindow.xaml

@@ -30,8 +30,10 @@
 			PaneDisplayMode="Left"
 			PaneTitle="Harmony"
 			x:Name="MainNavigation"
-			SelectionChanged="MainNavigation_SelectionChanged">
-			
+			SelectionChanged="MainNavigation_SelectionChanged"
+			IsBackButtonVisible="Visible"
+			BackRequested="MainNavigation_BackRequested">
+
 			<NavigationView.MenuItems>
 
 				<NavigationViewItem	Icon="Home" Content="Dashboard" Tag="Dashboard"	/>
@@ -40,7 +42,7 @@
 				<NavigationViewItem Icon="Contact" Content="Favorite artists" Tag="FavoriteArtists" />
 
 			</NavigationView.MenuItems>
-			
+
 			<NavigationView.FooterMenuItems>
 				<NavigationViewItem Content="Donate" Tag="PageDonate" >
 					<NavigationViewItem.Icon>
@@ -50,7 +52,8 @@
 				<NavigationViewItem Content="Homepage" Tag="PageHomepage" Icon="Globe" />
 			</NavigationView.FooterMenuItems>
 
-			<Frame x:Name="MainNavigationContentFrame" />
+			<Frame x:Name="MainNavigationContentFrame"
+				   Navigated="MainNavigationContentFrame_Navigated"/>
 
 		</NavigationView>
 
@@ -100,7 +103,7 @@
 								RadiusY="6"
 								VerticalAlignment="Center"
 								HorizontalAlignment="Center"
-								Fill="{ThemeResource SystemControlBackgroundBaseMediumBrush}"/>							
+								Fill="{ThemeResource SystemControlBackgroundBaseMediumBrush}"/>
 							<TextBlock Grid.Column="1"
 								Text="{x:Bind TrackName}"
 								x:Phase="1"
@@ -111,7 +114,7 @@
 								Text="{x:Bind ArtistName}"
 								x:Phase="2"
 								Style="{ThemeResource BodyTextBlockStyle}"
-								Margin="12,0,0,6"/>	
+								Margin="12,0,0,6"/>
 						</Grid>
 					</DataTemplate>
 				</ListView.ItemTemplate>