Fix styling and link to exercise

app/assets/stylesheets/exercises.css.scss

@@ -95,7 +95,24 @@ a.file-heading {
   left: 0;
 }
 
-.feedback-header {
+.feedback-page {
+  .header {
+    font-weight: bold;
+    margin-bottom: 10px;
+  }
+
+  .value {
+    border: 1px solid grey;
+    padding: 10px;
+    margin-bottom: 10px;
+  }
+
+  .no-feedback {
+    font-weight: bold;
+    margin-top: 50px;
+  }
+
+  .feedback-header {
     display: flex;
 
     .username {
@@ -104,9 +121,9 @@ a.file-heading {
     }
 
     .date {}
-}
+  }
 
-.feedback {
+  .feedback {
     .text {
       margin-bottom: 10px;
     }
@@ -116,4 +133,5 @@ a.file-heading {
     .worktime {
       font-weight: bold;
     }
+  }
 }

app/views/exercises/feedback.html.slim

@@ -1,10 +1,14 @@
-h1 = link_to(@exercise)
+h1 = link_to(@exercise, exercise_path(@exercise))
-= row(label: 'exercise.description', value: render_markdown(@exercise.description))
 
-- if @feedbacks.nil? or @feedbacks.size == 0
+.feedback-page
+  .header = t('activerecord.attributes.exercise.description')
+  .value = render_markdown(@exercise.description)
+
+  .header = t('activerecord.models.user_exercise_feedback.other')
+  - if @feedbacks.nil? or @feedbacks.size == 0
     .no-feedback = t('user_exercise_feedback.no_feedback')
 
-ul.list-unstyled.panel-group
+  ul.list-unstyled.panel-group
     - @feedbacks.each do |feedback|
       li.panel.panel-default
         .panel-heading role="tab" id="heading"
@@ -17,4 +21,4 @@ ul.list-unstyled.panel-group
             .difficulty = "#{t('user_exercise_feedback.difficulty')} #{feedback.difficulty}" if feedback.difficulty
             .worktime = "#{t('user_exercise_feedback.working_time')} #{feedback.user_estimated_worktime}" if feedback.user_estimated_worktime
 
-= render('shared/pagination', collection: @feedbacks)
+  = render('shared/pagination', collection: @feedbacks)