Update Bootstrap to v4.1, fix chosen.js and pagedown on multiple sites

app/views/shared/_edit_button.html.slim

@@ -1,3 +1,3 @@
 // default value for fetch will always be evaluated even if it is not returned
 - link_target = local_assigns.fetch(:path, false) || send(:"edit_#{object.class.name.underscore}_path", object)
-= link_to(t('shared.edit'), link_target, class: 'btn btn-default pull-right')
+= link_to(t('shared.edit'), link_target, class: 'btn btn-secondary float-right')

app/views/shared/_file.html.slim

@@ -5,6 +5,6 @@
 = row(label: 'file.hidden', value: file.hidden)
 = row(label: 'file.read_only', value: file.read_only)
 - if file.teacher_defined_test?
-  = row(label: 'file.feedback_message', value: render_markdown(file.feedback_message))
+  = row(label: 'file.feedback_message', value: render_markdown(file.feedback_message), class: 'm-0')
   = row(label: 'file.weight', value: file.weight)
 = row(label: 'file.content', value: file.native_file? ? link_to(file.native_file.file.filename, file.native_file.url) : code_tag(file.content))

app/views/shared/_form_filters.html.slim

@@ -1,11 +1,9 @@
-.well
+.card.card-body.bg-light
   = search_form_for(@search, class: 'clearfix filter-form form-inline') do |f|
     = yield(f)
-    .btn-group.pull-right
-      button.btn.btn-default.btn-sm type='submit' = t('shared.apply_filters')
-      button.btn.btn-default.btn-sm.dropdown-toggle data-toggle='dropdown' type='button'
-        span.caret
-        span.sr-only Toggle Dropdown
+    .btn-group.ml-auto
+      button.btn.btn-primary type='submit' = t('shared.apply_filters')
+      button.btn.btn-primary.dropdown-toggle data-toggle='dropdown' type='button'
       ul.dropdown-menu role='menu'
         li
-          a href=request.path = t('shared.reset_filters')
+          a.dropdown-item href=request.path = t('shared.reset_filters')

app/views/shared/_modal.html.slim

@@ -2,10 +2,10 @@
   .modal-dialog class=local_assigns[:classes]
     .modal-content
       .modal-header
+        h4#modal-title.modal-title = title
         button.close data-dismiss='modal' type='button'
           span aria-hidden=true ×
           span.sr-only Close
-        h4#modal-title.modal-title = title
       .modal-body
         - if local_assigns.has_key?(:body)
           = body

app/views/shared/_pagination.html.slim

@@ -1,3 +1,2 @@
-- if (pagination = will_paginate(collection, container: false)).present?
-  .text-center
-    ul.pagination = pagination
+- if (pagination = will_paginate(collection, container: false, renderer: WillPaginate::ActionView::Bootstrap4LinkRenderer)).present?
+  ul.pagination.justify-content-center = pagination

app/views/shared/_submit_button.html.slim

@@ -1 +1 @@
-= f.submit(class: 'btn btn-default', value: t(object.new_record? ? 'shared.create' : 'shared.update', model: object.class.model_name.human))
+= f.submit(class: 'btn btn-primary', value: t(object.new_record? ? 'shared.create' : 'shared.update', model: object.class.model_name.human))