[Deps]Upgrading to CommunityToolkit.WinUI v8.0 (#28205)

* Adding new package references

* Updating namespaces and controls

* Fixing GridSplitter

* Bump up version numbers

* Fix namespaces for Settings

* Fixing FontIcon extensions

* Use Toolkit converters

* Update notice

* Remove unused reference

* Namespace fixes

* Update MainPage.xaml

* Upgrading packages to latest

* Resolve CI issues

* Fix Hosts merge

src/settings-ui/Settings.UI/SettingsXAML/OOBE/Views/OobeFileExplorer.xaml

@@ -2,18 +2,18 @@
     x:Class="Microsoft.PowerToys.Settings.UI.OOBE.Views.OobeFileExplorer"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:controls="using:Microsoft.PowerToys.Settings.UI.Controls"
+    xmlns:custom="using:Microsoft.PowerToys.Settings.UI.Controls"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:local="using:Microsoft.PowerToys.Settings.UI.OOBE.Views"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:toolkitcontrols="using:CommunityToolkit.WinUI.UI.Controls"
     mc:Ignorable="d">
 
-    <controls:OOBEPageControl
+    <custom:OOBEPageControl
         x:Uid="Oobe_FileExplorer"
         HeroImage="ms-appx:///Assets/Settings/Modules/OOBE/FileExplorer.png">
 
-        <controls:OOBEPageControl.PageContent>
+        <custom:OOBEPageControl.PageContent>
             <StackPanel Orientation="Vertical">
                 <TextBlock
                     x:Uid="Oobe_HowToEnable"
@@ -39,6 +39,6 @@
                     </HyperlinkButton>
                 </StackPanel>
             </StackPanel>
-        </controls:OOBEPageControl.PageContent>
-    </controls:OOBEPageControl>
+        </custom:OOBEPageControl.PageContent>
+    </custom:OOBEPageControl>
 </Page>