Upgrade to .NET Framework 4.8

App.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
     </startup>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

FastbootEnhance.csproj

@@ -8,7 +8,7 @@
     <OutputType>WinExe</OutputType>
     <RootNamespace>FastbootEnhance</RootNamespace>
     <AssemblyName>FastbootEnhance</AssemblyName>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
@@ -138,7 +138,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.ja-JP.resx</DependentUpon>
     </Compile>
-	<Compile Include="Properties\Resources.ko-KR.Designer.cs">
+    <Compile Include="Properties\Resources.ko-KR.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.ko-KR.resx</DependentUpon>
@@ -191,7 +191,7 @@
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.ja-JP.Designer.cs</LastGenOutput>
     </EmbeddedResource>
-	<EmbeddedResource Include="Properties\Resources.ko-KR.resx">
+    <EmbeddedResource Include="Properties\Resources.ko-KR.resx">
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.ko-KR.Designer.cs</LastGenOutput>
     </EmbeddedResource>
@@ -232,4 +232,4 @@
     </Content>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-</Project>
+</Project>