Add empty hint for home timelines

app/views/timeline/timeline.html.haml

@@ -1,6 +1,9 @@
 #timeline{ data: { controller: "navigation" } }
   %button.d-none{ data: { hotkey: "j", action: "navigation#down" } }
   %button.d-none{ data: { hotkey: "k", action: "navigation#up" } }
+  - if @timeline.empty?
+    = render "shared/empty", type: "timeline"
+
   - @timeline.each do |answer|
     = render "answerbox", a: answer
 

config/locales/views.en.yml

@@ -581,6 +581,12 @@ en:
       moderation:
         reports: "There are no open reports right now!"
         inbox: "This users inbox is empty."
+      timeline:
+        heading: "Your feed is empty!"
+        text: "Start answering questions or follow some people to fill your feed with answers."
+        actions:
+          inbox: "Go to your inbox"
+          public: "Go to the public timeline"
       inbox:
         heading: "Your inbox is empty!"
         text: "To start answering, generate a question or share your profile on other sites to get questions."