enable buttons if the user hide follow·er counts

Say the user checked "Don't show follow count", then it's own link
button to their count and lists was hidden.

src/components/user_profile/user_profile.vue

@@ -61,7 +61,7 @@
           v-if="followsTabVisible"
           key="followees"
           :label="$t('user_card.followees')"
-          :disabled="!user.friends_count"
+          :disabled="!followsTabVisible"
         >
           <FriendList :user-id="userId">
             <template v-slot:item="{item}">
@@ -73,7 +73,7 @@
           v-if="followersTabVisible"
           key="followers"
           :label="$t('user_card.followers')"
-          :disabled="!user.followers_count"
+          :disabled="!followersTabVisible"
         >
           <FollowerList :user-id="userId">
             <template v-slot:item="{item}">