MOBILE-1518 course: Show title and descr in all sections if only 1 sec

Author: dpalou

www/core/components/course/controllers/section.js

@@ -40,6 +40,7 @@ angular.module('mm.core.course')
             $scope.title = $translate.instant('mm.course.allsections');
         }
         $scope.summary = null;
+        $scope.allSections = true;
     }
 
     // Convenience function to fetch section(s).

www/core/components/course/templates/section.html

@@ -14,11 +14,11 @@
 
             <section class="card" ng-repeat="section in sections" ng-if="section.modules.length > 0 || section.summary != ''">
                 <!-- Title and summary are displayed when multiple sections per page. -->
-                <div class="item item-divider" ng-if="sections.length > 1">
+                <div class="item item-divider" ng-if="allSections">
                     <h2><mm-format-text watch="true">{{ section.name }}</mm-format-text></h2>
                 </div>
 
-                <div class="item item-text-wrap" ng-if="sections.length > 1 && section.summary">
+                <div class="item item-text-wrap" ng-if="allSections && section.summary">
                     <mm-format-text class="mm-content-with-float">{{ section.summary }}</mm-format-text>
                 </div>