Fix safari 8 ui issue

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

app/views/projects/_issues_nav.html.haml

@@ -27,6 +27,8 @@
       .pull-right
         %button.btn.btn-default.sidebar-expand-button
           %i.icon.fa.fa-list
+
+        .pull-left
           = form_tag project_issues_path(@project), method: :get, id: "issue_search_form", class: 'pull-left issue-search-form'  do
             .append-right-10.hidden-xs.hidden-sm
               = search_field_tag :issue_search, params[:issue_search], { placeholder: 'Filter by title or description', class: 'form-control issue_search search-text-input input-mn-300' }
@@ -35,6 +37,7 @@
               = hidden_field_tag :assignee_id, params['assignee_id']
               = hidden_field_tag :milestone_id, params['milestone_id']
               = hidden_field_tag :label_id, params['label_id']
+
         - if can? current_user, :write_issue, @project
           = link_to new_project_issue_path(@project, issue: { assignee_id: params[:assignee_id], milestone_id: params[:milestone_id]}), class: "btn btn-new pull-left", title: "New Issue", id: "new_issue_link" do
             %i.fa.fa-plus