[feat]Add brief version of event partial; fix style

app/views/conferences/_about_and_happening_now.haml

@@ -1,3 +1,16 @@
+= content_for :happening_now do
+  #happening-now
+    = render 'happening_now', conference: conference,
+      events_schedules: events_schedules, pagy: pagy,
+      events_schedules_length: events_schedules_length,
+      events_schedules_limit: events_schedules_limit
+
+= content_for :about do
+  #about
+    .row
+      %h2.text-left{ style: 'margin-bottom:30px' } About the Conference
+      = markdown(conference.description, false)
+
 %section#about-and-happening-now
   .container
     .row
@@ -5,29 +18,15 @@
       - if conference.splashpage.include_happening_now?
         - if conference.description.present?
           .col-md-6.col-md-push-6.col-lg-4.col-lg-push-8
-            #happening-now
-              = render 'happening_now', conference: conference,
-                events_schedules: events_schedules, pagy: pagy,
-                events_schedules_length: events_schedules_length,
-                events_schedules_limit: events_schedules_limit
+            = yield :happening_now
         - else
           .col-md-12
-            #happening-now
-              = render 'happening_now', conference: conference,
-                events_schedules: events_schedules, pagy: pagy,
-                events_schedules_length: events_schedules_length,
-                events_schedules_limit: events_schedules_limit
+            = yield :happening_now
       - if conference.description.present?
         - if conference.splashpage.include_happening_now?
           .col-md-6.col-md-pull-6.col-lg-8.col-lg-pull-4
-            #about
-              .row
-                %h2.text-left{ style: 'margin-bottom:30px' } About the Conference
-                = markdown(conference.description, false)
+            = yield :about
         - else
           .col-md-12
-            #about
-              .row
-                %h2.text-left{ style: 'margin-bottom:30px' } About the Conference
-                = markdown(conference.description, false)
+            = yield :about
   .trapezoid

app/views/conferences/_happening_now.haml

@@ -3,7 +3,7 @@
     .row
       %h2.text-center{ style: 'margin-bottom:30px' } Happening Now
     - events_schedules.each do |event_schedule|
-      = render 'schedules/event', conference: conference, event_schedule: event_schedule, event: event_schedule.event
+      = render 'schedules/event', conference: conference, event_schedule: event_schedule, event: event_schedule.event, is_brief: true
     - if events_schedules_length > events_schedules_limit
       .container{ style: 'width:100%; text-align:center' }
         != pagy_bootstrap_nav_js(pagy)