Move 'Advanced search' message to title

**Why?**
It was way too crouded in it's previous home.

https://gitlab.com/gitlab-org/gitlab/issues/30783

app/views/search/_form.html.haml

@@ -18,4 +18,3 @@
       = render 'filter'
     .d-flex-center.flex-column.flex-lg-row
       = button_tag _("Search"), class: "btn btn-success btn-search form-control mt-lg-0 ml-lg-1 align-self-end"
-      = render_if_exists 'search/form_elasticsearch'

app/views/search/show.html.haml

@@ -2,9 +2,10 @@
 - page_title @search_term
 - @hide_breadcrumbs = true
 
-.page-title-holder.d-flex.align-items-center
+.page-title-holder.d-sm-flex.align-items-sm-center
   %h1.page-title<
     = _('Search')
+  = render_if_exists 'search/form_elasticsearch', attrs: { class: 'ml-sm-auto' }
 
 .prepend-top-default
   = render 'search/form'

ee/app/views/search/_form_elasticsearch.html.haml

 - if search_service.use_elasticsearch?
-  .form-text.text-muted.mt-lg-0.ml-lg-2
+  .form-text.text-muted{ **local_assigns.fetch(:attrs, {}) }
     = link_to _('Advanced search functionality'), help_page_path('user/search/advanced_search_syntax.md'), target: '_blank'
     = _('is enabled.')

ee/changelogs/unreleased/30783-move-advanced-search-message-out-of-search-bar.yml

+---
+title: Move 'Advanced search' message to search page title
+merge_request: 18349
+author:
+type: changed