Adding some libs

Stratis.Guru.csproj

@@ -7,6 +7,8 @@
     <ItemGroup>
         <PackageReference Include="Microsoft.AspNetCore.App" />
         <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" />
+        <PackageReference Include="NStratis" Version="4.0.0.66" />
+        <PackageReference Include="QRCoder" Version="1.3.3" />
     </ItemGroup>
 
 </Project>

wwwroot/css/default.css

@@ -3115,6 +3115,7 @@ header a:not(.logo) {
   position: relative;
   color: #0087ca;
 }
+
 header a:not(.logo)::after {
   content: '';
   position: absolute;
@@ -3127,6 +3128,7 @@ header a:not(.logo)::after {
   transform-origin: bottom right;
   transition: transform 0.25s ease-out;
 }
+
 header a:not(.logo):hover::after {
   transform: scaleX(1);
   transform-origin: bottom left;