[UX] New dashboard & refactored KeyVisual (#40214)

### Updated `KeyVisual` and `Shortcut` control
- Refactoring `KeyVisual` to remove redundant properties and UI
elements, and using Styles for better customization.
- Shortcut control now shows a "Configure shortcut" label when there's
no shortcut configured.

### Other changes
- Consolidated converters that were used across pages in `App.xaml.cs`
with consistent naming.
- Renamed templated controls (from `.cs` to `.xaml.cs`) and moving those
to the `Controls` root folder vs. individual folders for a better
overview.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist

Closes #39520
Closes #32944

---------

Co-authored-by: Jay <65828559+Jay-o-Way@users.noreply.github.com>
Co-authored-by: Jaylyn Barbee <51131738+Jaylyn-Barbee@users.noreply.github.com>

src/settings-ui/Settings.UI/SettingsXAML/Views/MouseUtilsPage.xaml

@@ -14,10 +14,6 @@
     mc:Ignorable="d">
     <Page.Resources>
         <converters:IndexBitFieldToVisibilityConverter x:Key="IndexBitFieldToVisibilityConverter" />
-        <tkconverters:BoolToVisibilityConverter
-            x:Key="BoolToInvertedVisibilityConverter"
-            FalseValue="Visible"
-            TrueValue="Collapsed" />
     </Page.Resources>
     <controls:SettingsPageControl x:Uid="MouseUtils" ModuleImageSource="ms-appx:///Assets/Settings/Modules/MouseUtils.png">
         <controls:SettingsPageControl.ModuleContent>
@@ -153,7 +149,7 @@
                         IsClosable="False"
                         IsOpen="True"
                         Severity="Informational"
-                        Visibility="{x:Bind ViewModel.IsAnimationEnabledBySystem, Mode=OneWay, Converter={StaticResource BoolToInvertedVisibilityConverter}}">
+                        Visibility="{x:Bind ViewModel.IsAnimationEnabledBySystem, Mode=OneWay, Converter={StaticResource BoolToReverseVisibilityConverter}}">
                         <InfoBar.ActionButton>
                             <HyperlinkButton x:Uid="OpenSettings" Click="OpenAnimationsSettings_Click" />
                         </InfoBar.ActionButton>