Feature/new user snippets breadcrumbs

app/views/snippets/new.html.haml

 - @hide_top_links = true
-- breadcrumb_title "Snippets"
+- add_to_breadcrumbs "Snippets", dashboard_snippets_path
+- breadcrumb_title "New"
 - page_title "New Snippet"
 %h3.page-title
   New Snippet

changelogs/unreleased/51282-link-to-user-snippets-on-new-user-snippet-page.yml

+---
+title: Add link to User Snippets in breadcrumbs of New User Snippet page
+merge_request: 
+author: J.D. Bean
+type: add

spec/features/snippets/user_sees_breadcrumb_links.rb

+require 'rails_helper'
+
+describe 'New user snippet breadcrumbs' do
+  let(:user) { create(:user) }
+
+  before do
+    sign_in(user)
+    visit new_snippet_path
+  end
+
+  it 'display a link to user snippets and new user snippet pages' do
+    page.within '.breadcrumbs' do
+      expect(find_link('Snippets')[:href]).to end_with(dashboard_snippets_path)
+      expect(find_link('New')[:href]).to end_with(new_snippet_path)
+    end
+  end
+end