Use Unicode charset without the BOM

Update and follow EditorConfig settings.
BOM: Byte Order Mark (Used to identify UTF-8 encoding).
We don't need BOM specified as the latest editors can work without it.

Author: Nirmal4G

.editorconfig

@@ -6,6 +6,9 @@ root = true
 
 #### Core EditorConfig Options ####
 
+# Encoding
+charset = utf-8
+
 # Indentation and spacing
 indent_size = 4
 indent_style = space

GazeInputTest/App.xaml

@@ -1,4 +1,4 @@
-<Application
+<Application
     x:Class="GazeInputTest.App"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

GazeInputTest/GazeInputTest.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>

GazeInputTest/MainPage.xaml

@@ -1,4 +1,4 @@
-<Page
+<Page
     x:Class="GazeInputTest.MainPage"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

GazeInputTest/Package.appxmanifest

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 
 <Package
   xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"

Microsoft.Toolkit.Diagnostics/Attributes/DoesNotReturnAttribute.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// 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.
 

Microsoft.Toolkit.Diagnostics/Attributes/DoesNotReturnIfAttribute.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// 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.
 

Microsoft.Toolkit.Diagnostics/Attributes/NotNullAttribute.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// 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.
 

Microsoft.Toolkit.Diagnostics/Attributes/SkipLocalsInitAttribute.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// 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.
 

Microsoft.Toolkit.Diagnostics/Extensions/TypeExtensions.cs

@@ -1,4 +1,4 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// 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.