Add empty hint for inbox

app/views/inbox/show.html.haml

@@ -3,7 +3,7 @@
     = render "inbox/entry", i:
 
   - if @inbox.empty?
-    %p.empty= t(".empty")
+    = render "shared/empty", type: "inbox"
 
 - if @more_data_available
   .d-flex.justify-content-center#paginator

config/locales/views.en.yml

@@ -581,6 +581,9 @@ en:
       moderation:
         reports: "There are no open reports right now!"
         inbox: "This users inbox is empty."
+      inbox:
+        heading: "Your inbox is empty!"
+        text: "To start answering, generate a question or share your profile on other sites to get questions."
     formatting:
       body_html: |
         <p>%{app_name} uses <b>Markdown</b> for formatting</p>