Add a fqn field to blogs and users (#457)

Fixes #319

templates/users/header.rs.html

@@ -10,8 +10,8 @@
             @avatar(ctx.0, &user, Size::Medium, false, ctx.1)
 
             <h1 class="grow flex vertical">
-                <span class="p-name">@user.name(ctx.0)</span>
-                <small class="p-nickname">@user.get_fqn(ctx.0)</small>
+                <span class="p-name">@user.name()</span>
+                <small class="p-nickname">@&user.fqn</small>
             </h1>
 
             <p>
@@ -33,7 +33,7 @@
         }
 
         @if ctx.2.clone().map(|u| u.id != user.id).unwrap_or(false) {
-            <form class="inline" method="post" action="@uri!(user::follow: name = user.get_fqn(ctx.0))">
+            <form class="inline" method="post" action="@uri!(user::follow: name = &user.fqn)">
             @if follows {
                 <input type="submit" value="@i18n!(ctx.1, "Unsubscribe")">
             } else {