minor lint fixes

src/components/user_panel/user_panel.vue

@@ -6,7 +6,7 @@
       class="panel panel-default signed-in"
     >
       <UserCard
-        :userId="user.id"
+        :user-id="user.id"
         :hide-bio="true"
         rounded="top"
       />

src/components/user_profile/user_profile.vue

@@ -5,7 +5,7 @@
       class="user-profile panel panel-default"
     >
       <UserCard
-        :userId="user.id"
+        :user-id="userId"
         :switcher="true"
         :selected="timeline.viewing"
         :allow-zooming-avatar="true"