Clean up markup

app/assets/stylesheets/statistics.css.scss

@@ -102,6 +102,21 @@ div.negative-result {
   }
 }
 
+.group {
+  .title {
+    display: flex;
+    align-items: baseline;
+
+    h1 {
+      flex-grow: 1;
+    }
+
+    h2 {
+      font-size: medium;
+    }
+  }
+}
+
 .spinner {
   width: 40px;
   height: 40px;

app/views/statistics/graphs.html.slim

@@ -3,11 +3,15 @@
   = stylesheet_link_tag(asset_path('vis.min.css', type: :stylesheet))
 
 .group
-  h1 User Activity
+  .title
+    h1 = t('.user_activity')
+    a href='#' = t('.history')
   .spinner
   .graph#user-activity
 
 .group
-  h1 RFC Activity
+  .title
+    h1 = t('.rfc_activity')
+    a href='#' = t('.history')
   .spinner
   .graph#rfc-activity

config/locales/de.yml

@@ -757,3 +757,7 @@ de:
       users:
         currently_active: "Aktiv (5 Minuten)"
         currently_active60: "Aktiv (60 Minuten)"
+    graphs:
+      user_activity: "Nutzeraktivität"
+      rfc_activity: "Kommentaranfragenaktivität"
+      history: "Historie"

config/locales/en.yml

@@ -757,3 +757,7 @@ en:
       users:
         currently_active: "Active (5 minutes)"
         currently_active60: "Active (60 minutes)"
+    graphs:
+      user_activity: "User Activity"
+      rfc_activity: "RfC Activity"
+      history: "History"