Improve partial rendering and Haml performance (Haml->Hamlit)

app/views/accounts/followers.html.haml

@@ -5,10 +5,9 @@
 = render partial: 'header'
 
 .accounts-grid
-  - @followers.each do |f|
-    = render partial: 'grid_card', locals: { account: f }
-
   - if @followers.empty?
     = render partial: 'nothing_here'
+  - else
+    = render partial: 'grid_card', collection: @followers, as: :account
 
 = will_paginate @followers, pagination_options

app/views/accounts/following.html.haml

@@ -6,10 +6,9 @@
 = render partial: 'header'
 
 .accounts-grid
-  - @following.each do |f|
-    = render partial: 'grid_card', locals: { account: f }
-
   - if @following.empty?
     = render partial: 'nothing_here'
+  - else
+    = render partial: 'grid_card', collection: @following, as: :account
 
 = will_paginate @following, pagination_options

app/views/accounts/show.html.haml

@@ -12,7 +12,6 @@
     = render partial: 'nothing_here'
 - else
   .activity-stream
-    - @statuses.each do |status|
-      = render partial: 'stream_entries/status', locals: { status: status }
+    = render partial: 'stream_entries/status', collection: @statuses, as: :status
 
 = will_paginate @statuses, pagination_options