Improve user block/unblock UI in admin area

app/controllers/admin/users_controller.rb

@@ -24,7 +24,7 @@ class Admin::UsersController < Admin::ApplicationController
 
   def block
     if user.block
-      redirect_to :back, alert: "Successfully blocked"
+      redirect_to :back, notice: "Successfully blocked"
     else
       redirect_to :back, alert: "Error occurred. User was not blocked"
     end
@@ -32,7 +32,7 @@ class Admin::UsersController < Admin::ApplicationController
 
   def unblock
     if user.activate
-      redirect_to :back, alert: "Successfully unblocked"
+      redirect_to :back, notice: "Successfully unblocked"
     else
       redirect_to :back, alert: "Error occurred. User was not unblocked"
     end

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

@@ -108,8 +108,10 @@
       .col-md-6
         - unless @user == current_user
           - if @user.blocked?
-            .alert.alert-info
-              %h4 This user is blocked
+            .panel.panel-info
+              .panel-heading
+                This user is blocked
+              .panel-body
                 %p Blocking user has the following effects:
                 %ul
                   %li User will not be able to login
@@ -118,10 +120,12 @@
                   %li Personal projects will be left
                   %li Owned groups will be left
                 %br
-              = link_to 'Unblock user', unblock_admin_user_path(@user), method: :put, class: "btn btn-new", data: { confirm: 'Are you sure?' }
+                = link_to 'Unblock user', unblock_admin_user_path(@user), method: :put, class: "btn btn-info", data: { confirm: 'Are you sure?' }
           - else
-            .alert.alert-warning
-              %h4 Block this user
+            .panel.panel-warning
+              .panel-heading
+                Block this user
+              .panel-body
                 %p Blocking user has the following effects:
                 %ul
                   %li User will not be able to login
@@ -130,11 +134,12 @@
                   %li Personal projects will be left
                   %li Owned groups will be left
                 %br
-              = link_to 'Block user', block_admin_user_path(@user), data: { confirm: 'USER WILL BE BLOCKED! Are you sure?' }, method: :put, class: "btn btn-remove"
+                = link_to 'Block user', block_admin_user_path(@user), data: { confirm: 'USER WILL BE BLOCKED! Are you sure?' }, method: :put, class: "btn btn-warning"
 
-          .alert.alert-danger
-            %h4
+          .panel.panel-danger
+            .panel-heading
               Remove user
+            .panel-body
               %p Deleting a user has the following effects:
               %ul
                 %li All user content like authored issues, snippets, comments will be removed