MDL-58386 block_myoverview: Mustache tidyup

Part of MDL-55611 epic.

blocks/myoverview/templates/progress-chart.mustache

@@ -21,7 +21,8 @@
 
     Example context (json):
     {
-        "progress": "60",
+        "hasprogress": true,
+        "progress": "60"
     }
 }}
 <div class="progress-chart-container m-b-1">

blocks/myoverview/templates/timeline-view.mustache

@@ -48,7 +48,7 @@ require(['jquery', 'core/custom_interaction_events'], function($, customEvents)
     var root = $('#timeline-view-{{uniqid}}');
     customEvents.define(root, [customEvents.events.activate]);
     root.on(customEvents.events.activate, '[data-toggle="btns"] > .btn', function() {
-      	root.find('.btn.active').removeClass('active');
+        root.find('.btn.active').removeClass('active');
     });
 });
 {{/js}}