Bump version, pdb set to portable

Author: Tomáš Bezouška

src/Firebase/Firebase.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <PackageId>FirebaseDatabase.net</PackageId>
-    <PackageVersion>4.0.3</PackageVersion>
+    <PackageVersion>4.0.4</PackageVersion>
     <Authors>Step Up Labs, Inc.</Authors>
     <Description>Complex C# library for Firebase Realtime Database built on top of Firebase REST API. Among others it supports following:
 
@@ -25,11 +25,8 @@
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <DocumentationFile>bin\$(Configuration)\netstandard2.0\Firebase.xml</DocumentationFile>
-  </PropertyGroup>
-
-  <PropertyGroup>
-    <DebugType>pdbonly</DebugType>
-    <DebugSymbols>True</DebugSymbols>
+    <DebugType>portable</DebugType>
+    <DebugSymbols>true</DebugSymbols>
   </PropertyGroup>
 
   <ItemGroup>