Change default avatar, redirect to home after sign up

app/assets/stylesheets/accounts.scss

@@ -267,5 +267,6 @@
   font-weight: 500;
   text-align: center;
   padding: 15px 0;
+  padding-bottom: 25px;
   cursor: default;
 }

app/controllers/auth/registrations_controller.rb

@@ -17,6 +17,6 @@ class Auth::RegistrationsController < Devise::RegistrationsController
   end
 
   def after_sign_up_path_for(resource)
-    account_path(resource.account)
+    root_path
   end
 end

app/views/accounts/show.html.haml

@@ -7,8 +7,12 @@
 
 = render partial: 'header'
 
-.activity-stream
-  - @statuses.each do |status|
-    = render partial: 'stream_entries/status', locals: { status: status, include_threads: false, is_successor: false, is_predecessor: false }
+- if @statuses.empty?
+  .accounts-grid
+    = render partial: 'nothing_here'
+- else
+  .activity-stream
+    - @statuses.each do |status|
+      = render partial: 'stream_entries/status', locals: { status: status }
 
 = will_paginate @statuses, pagination_options