Add "Resend confirmation e-mail" link in profile settings

Fixes https://github.com/gitlabhq/gitlabhq/issues/9274

CHANGELOG

@@ -17,6 +17,7 @@ v 7.12.0 (unreleased)
   - Remove Rack Attack monkey patches and bump to version 4.3.0 (Stan Hu)
   - Fix clone URL losing selection after a single click in Safari and Chrome (Stan Hu)
   - Fix git blame syntax highlighting when different commits break up lines (Stan Hu)
+  - Add "Resend confirmation e-mail" link in profile settings (Stan Hu)
   - Allow to configure location of the `.gitlab_shell_secret` file. (Jakub Jirutka)
   - Disabled expansion of top/bottom blobs for new file diffs
   - Update Asciidoctor gem to version 1.5.2. (Jakub Jirutka)

app/views/profiles/show.html.haml

@@ -37,8 +37,11 @@
               = f.text_field :email, class: "form-control", required: true
             - if @user.unconfirmed_email.present?
               %span.help-block
-                Please click the link in the confirmation email before continuing, it was sent to
+                Please click the link in the confirmation email before continuing. It was sent to
+                = succeed "." do
                   %strong #{@user.unconfirmed_email}
+                %p
+                = link_to "Resend confirmation e-mail", user_confirmation_path(user: { email: @user.unconfirmed_email }), method: :post
 
             - else
               %span.help-block We also use email for avatar detection if no avatar is uploaded.