Revert "Update sample to use Identity.Web 1.0"

This reverts commit 3c498b7.

Author: henrik-me

1. Desktop app calls Web API/TodoListService/TodoListService.csproj

@@ -7,6 +7,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Identity.Web" Version="1.0.0" />
+    <PackageReference Include="Microsoft.Identity.Web" Version="0.4.0-preview" />
   </ItemGroup>
 </Project>

2. Web API now calls Microsoft Graph/TodoListService/TodoListService.csproj

@@ -11,8 +11,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Identity.Web" Version="1.0.0" />
-    <PackageReference Include="Microsoft.Identity.Web.MicrosoftGraph" Version="1.0.0" />
+    <PackageReference Include="Microsoft.Identity.Web" Version="0.4.0-preview" />
+    <PackageReference Include="Microsoft.Identity.Web.MicrosoftGraph" Version="0.4.0-preview" />
   </ItemGroup>
 
 </Project>

4.-Console-app-calls-web-API-with-PoP/Microsoft.Identity.Web.Future/Microsoft.Identity.Web.Future.csproj

@@ -41,7 +41,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Identity.Web" Version="1.0.0" />
+    <PackageReference Include="Microsoft.Identity.Web" Version="0.4.0-preview" />
     <PackageReference Include="Microsoft.IdentityModel.Protocols.SignedHttpRequest" Version="6.7.1" />
     <PackageReference Include="System.Collections" Version="4.3.0" />
     <PackageReference Include="Microsoft.IdentityModel.JsonWebTokens" Version="6.7.1" />