Fix rubocop offenses

app/controllers/code_ocean/files_controller.rb

@@ -28,7 +28,7 @@ module CodeOcean
           yield if block_given?
           path = options[:path].try(:call) || @object
           respond_with_valid_object(format, notice: t('shared.object_created', model: @object.class.model_name.human),
-path: path, status: :created)
+            path: path, status: :created)
         else
           filename = "#{@object.path || ''}/#{@object.name || ''}#{@object.file_type.try(:file_extension) || ''}"
           format.html do

app/controllers/exercises_controller.rb

@@ -21,7 +21,7 @@ class ExercisesController < ApplicationController
     only: %i[import_exercise import_uuid_check export_external_confirm export_external_check]
   skip_after_action :verify_authorized, only: %i[import_exercise import_uuid_check export_external_confirm]
   skip_after_action :verify_policy_scoped, only: %i[import_exercise import_uuid_check export_external_confirm],
-raise: false
+    raise: false
 
   def authorize!
     authorize(@exercise || @exercises)

app/helpers/application_helper.rb

@@ -45,7 +45,7 @@ module ApplicationHelper
   def progress_bar(value)
     tag.div(class: value ? 'progress' : 'disabled progress') do
       tag.div(value ? "#{value}%" : '', 'aria-valuemax': 100, 'aria-valuemin': 0,
-'aria-valuenow': value, class: 'progress-bar progress-bar-striped', role: 'progressbar', style: "width: #{[value || 0, 100].min}%;")
+        'aria-valuenow': value, class: 'progress-bar progress-bar-striped', role: 'progressbar', style: "width: #{[value || 0, 100].min}%;")
     end
   end
 

app/helpers/pagedown_form_builder.rb

@@ -28,7 +28,7 @@ class PagedownFormBuilder < ActionView::Helpers::FormBuilder
 
   def wmd_preview
     @template.tag.div(nil, class: 'wmd-preview',
-                         id: "wmd-preview-#{base_id}")
+      id: "wmd-preview-#{base_id}")
   end
 
   def show_wmd_preview?