Replaces 3 spinner Icons with new ones

app/views/projects/blob/_upload.html.haml

@@ -21,7 +21,7 @@
 
           .form-actions
             = button_tag class: 'btn gl-button btn-success btn-upload-file', id: 'submit-all', type: 'button' do
-              = icon('spin spinner', class: 'js-loading-icon hidden' )
+              .spinner.spinner-sm.gl-mr-2.js-loading-icon.hidden
               = button_title
             = link_to _("Cancel"), '#', class: "btn gl-button btn-cancel", "data-dismiss" => "modal"
 

ee/app/views/projects/_project_templates.html.haml

@@ -27,10 +27,10 @@
       = render partial: 'projects/project_templates/template', collection: Gitlab::ProjectTemplate.all
     .project-templates-buttons.import-buttons.tab-pane.js-custom-instance-project-templates-tab-content#custom-instance-project-templates{ data: {initial_templates: user_available_project_templates_path(current_user)} }
       .text-center.m-4
-        = icon("spin spinner 2x")
+        .spinner.spinner-md
     .project-templates-buttons.import-buttons.tab-pane.js-custom-group-project-templates-tab-content#custom-group-project-templates{ data: {initial_templates: user_available_group_templates_path(current_user, group_id: group_id)} }
       .text-center.m-4
-        = icon("spin spinner 2x")
+        .spinner.spinner-md
     .project-templates-buttons.import-buttons.tab-pane#sample-data-templates
       = render partial: 'projects/project_templates/template', collection: Gitlab::SampleDataTemplate.all