Make small pipeline schedules UI enhancements.

app/assets/stylesheets/pages/pipeline_schedules.scss

@@ -12,7 +12,7 @@
 .interval-pattern-form-group {
   label {
     margin-right: 10px;
-    font-size: 12px;
+    font-weight: normal;
 
     &[for='custom'] {
       margin-right: 0;

app/views/projects/pipeline_schedules/_form.html.haml

@@ -20,7 +20,7 @@
   .form-group
     .col-md-9
       = f.label :ref, _('Target Branch'), class: 'label-light'
-      = dropdown_tag(_("Select target branch"), options: { toggle_class: 'btn js-target-branch-dropdown git-revision-dropdown-toggle', dropdown_class: 'git-revision-dropdown', title: _("Select target branch"), filter: true, placeholder: _("Filter"), data: { data: @project.repository.branch_names, default_branch: @project.default_branch } } )
+      = dropdown_tag(_("Select target branch"), options: { toggle_class: 'btn js-target-branch-dropdown', dropdown_class: 'git-revision-dropdown', title: _("Select target branch"), filter: true, placeholder: _("Filter"), data: { data: @project.repository.branch_names, default_branch: @project.default_branch } } )
       = f.text_field :ref, value: @schedule.ref, id: 'schedule_ref', class: 'hidden', name: 'schedule[ref]', required: true
   .form-group
     .col-md-9

spec/features/projects/pipeline_schedules_spec.rb

@@ -127,7 +127,7 @@ feature 'Pipeline Schedules', :feature do
       end
 
       it 'shows the pipeline schedule with default ref' do
-        page.within('.git-revision-dropdown-toggle') do
+        page.within('.js-target-branch-dropdown') do
           expect(first('.dropdown-toggle-text').text).to eq('master')
         end
       end