Icon updates and md cleanup (#158)

* First pass

* Fix xaml

* Adding more icons

* XAML styler

* More icons

* Adding shadow icon

* Minor sample tweak

* Update tooling

* Revert "Update tooling"

This reverts commit e653319.

* Update tooling

---------

Co-authored-by: Arlo <arlo.godfrey@outlook.com>
Co-authored-by: Michael Hawker MSFT (XAML Llama) <24302614+michael-hawker@users.noreply.github.com>

Author: 3 people

components/Behaviors/samples/Assets/AnimationSet.png

@@ -9,7 +9,7 @@ category: Xaml
 subcategory: Behaviors
 discussion-id: 0
 issue-id: 0
-icon: Assets/Behaviors.png
+icon: Assets/HeaderBehaviors.png
 ---
 
 The `FadeHeaderBehavior`, `QuickReturnHeaderBehavior`, and `StickyHeaderBehavior` most commonly apply behaviors to `ListView`, `GridView`, `HeaderedItemsControl`, and `HeaderedTreeView` elements in their `Header`. It can also be applied to any element contained at the top of a `ScrollViewer`.

components/Behaviors/samples/Assets/Behaviors.png

@@ -20,8 +20,7 @@ icon: Assets/CameraPreview.png
 ## Syntax
 
 ```xaml
-<controls:CameraPreview x:Name="CameraPreviewControl">
-</controls:CameraPreview>
+<controls:CameraPreview x:Name="CameraPreviewControl"/>
 ```
 
 ```csharp

components/Behaviors/samples/Assets/HeaderBehaviors.png

@@ -1,4 +1,4 @@
-<!--  Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information.  -->
+<!--  Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information.  -->
 <Page x:Class="CameraPreviewExperiment.Samples.CameraPreviewSample"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
@@ -12,6 +12,9 @@
     <StackPanel HorizontalAlignment="Center"
                 Orientation="Vertical"
                 Spacing="12">
+        <Button HorizontalAlignment="Center"
+                Click="CaptureButton_Click"
+                Content="Capture" />
         <controls:CameraPreview x:Name="CameraPreviewControl"
                                 Height="320"
                                 IsFrameSourceGroupButtonVisible="{x:Bind ShowCamera, Mode=OneWay}" />
@@ -20,10 +23,8 @@
                       IsOpen="False"
                       Severity="Error" />
         <Image x:Name="CurrentFrameImage"
-               Height="240"
+               Height="120"
                HorizontalAlignment="Center" />
-        <Button HorizontalAlignment="Center"
-                Click="CaptureButton_Click"
-                Content="Capture" />
+
     </StackPanel>
 </Page>

components/Behaviors/samples/Headers/HeaderBehaviors.md

@@ -1,8 +1,8 @@
 ---
 title: Array Extensions
 author: michael-hawker
-description: Learn about array extension methods from the community toolkit. See code examples and view requirements.
-keywords: windows 10, uwp, uwp community toolkit, uwp toolkit, Extensions, array
+description: Provides a few helpers for dealing with multidimensional and jagged arrays. Also, provides string helpers for debug output.
+keywords: Extensions, array
 dev_langs:
   - csharp
 category: Extensions
@@ -20,7 +20,7 @@ Provides a few helpers for dealing with multidimensional and jagged arrays. Also
 ## Syntax
 
 ```csharp
-using Microsoft.Toolkit.Extensions;
+using CommunityToolkit.WinUI.Extensions;
 
 bool[,] inside = new bool[4, 5];
 
@@ -37,25 +37,3 @@ Output:
  [False, False, False, False, False]]
  */
 ```
-
-## Methods
-
-| Methods | Return Type | Description |
-| -- | -- | -- |
-| Fill | void | Fills elements of a rectangular array at the given position and size to a specific value. |
-| GetRow | IEnumerable | Yields a row from a rectangular array. |
-| GetColumn | IEnumerable | Yields a column from a rectangular or jagged array. |
-| ToArrayString | string | Returns a simple string representation of an array. |
-
-## Requirements (Windows 10 Device Family)
-
-| [Device family](/windows/uwp/get-started/universal-application-platform-guide) | Universal, 10.0.16299.0 or higher |
-| --- | --- |
-| Namespace | Microsoft.Toolkit |
-| NuGet package | [Microsoft.Toolkit](https://www.nuget.org/packages/Microsoft.Toolkit/) |
-
-The Array Extensions supports .NET Standard
-
-## API
-
-* [ArrayExtensions source code](https://github.com/windows-toolkit/WindowsCommunityToolkit/blob/rel/7.1.0/Microsoft.Toolkit/Extensions/ArrayExtensions.cs)