Small UI fixes

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/admin/groups/index.html.haml

@@ -7,7 +7,7 @@
   = link_to 'New Group', new_admin_group_path, class: "btn btn-new pull-right"
 %br
 = form_tag admin_groups_path, method: :get, class: 'form-inline' do
-  = text_field_tag :name, params[:name], class: "span6"
+  = text_field_tag :name, params[:name], class: "span6 input-xpadding"
   = submit_tag "Search", class: "btn submit btn-primary"
 %hr

app/views/admin/users/index.html.haml

@@ -2,8 +2,8 @@
   .span3
     .admin-filter
       = form_tag admin_users_path, method: :get, class: 'form-inline' do
-        = search_field_tag :name, params[:name], placeholder: 'Name, email or username', class: 'search-text-input span2'
-        = button_tag type: 'submit', class: 'btn' do
+        = search_field_tag :name, params[:name], placeholder: 'Name, email or username', class: 'input-xpadding span2'
+        = button_tag type: 'submit', class: 'btn btn-primary' do
           %i.icon-search
       %ul.nav.nav-pills.nav-stacked
         %li{class: "#{'active' unless params[:filter]}"}