Add errors helper to support form builder

It still has no good CSS to it, but that's okay, this is just to DRY it
up.

app/helpers/support_form_helper.rb

@@ -3,6 +3,21 @@ module SupportFormHelper
 		attr_reader :template
 		delegate :concat, :content_tag, :image_tag, to: :template, private: true
 
+		def errors
+			return nil if object.errors.empty?
+
+			error_list = content_tag(:ul) do
+				object.errors.each do |error|
+					concat content_tag(:li, error.full_message)
+				end
+			end
+
+			content_tag(:p) do
+				concat "Could not save:"
+				concat error_list
+			end
+		end
+
 		def fields(&block)
 			content_tag(:ul, class: "fields", &block)
 		end

app/views/alt_styles/edit.html.haml

@@ -14,12 +14,7 @@
 = image_tag @alt_style.preview_image_url, class: "alt-style-preview"
 
 = support_form_with model: @alt_style, class: "support-form" do |f|
-	- if @alt_style.errors.any?
-		%p
-			Could not save:
-			%ul.errors
-				- @alt_style.errors.each do |error|
-					%li= error.full_message
+	= f.errors
 
 	= f.fields do
 		= f.field do

app/views/items/edit.html.haml

@@ -9,12 +9,7 @@
 	it will probably be reverted automatically when someone models it.
 
 = support_form_with model: @item, class: "support-form" do |f|
-	- if @item.errors.any?
-		%p
-			Could not save:
-			%ul.errors
-				- @item.errors.each do |error|
-					%li= error.full_message
+	= f.errors
 
 	= f.fields do
 		= f.field do

app/views/pet_states/edit.html.haml

@@ -18,12 +18,7 @@
 = outfit_viewer pet_state: @pet_state
 
 = support_form_with model: [@pet_type, @pet_state] do |f|
-	- if @pet_state.errors.any?
-		%p
-			Could not save:
-			%ul.errors
-				- @pet_state.errors.each do |error|
-					%li= error.full_message
+	= f.errors
 
 	= f.fields do
 		= f.radio_grid_fieldset "Pose" do