Refactored frontend.

Moved output to editor tab.
Added collapse function to sidebar.

app/views/exercises/implement.html.slim

@@ -1,5 +1,5 @@
 .row
-  #editor-column.col-md-10.col-md-offset-1
+  #editor-column.col-md-12
     h1 = @exercise
 
     span.badge.pull-right.score
@@ -16,10 +16,6 @@
           a data-placement='top' data-toggle='tab' data-tooltip=true href='#workspace' role='tab' title=t('shared.tooltips.shortcut', shortcut: 'ALT + 1')
             i.fa.fa-code
             = t('.workspace')
-        li
-          a data-placement='top' data-toggle='tab' data-tooltip=true href='#outputInformation' role='tab' title=t('shared.tooltips.shortcut', shortcut: 'ALT + 2')
-            i.fa.fa-terminal
-            = t('.output')
         li
           a data-placement='top' data-toggle='tab' data-tooltip=true href='#progress' role='tab' title=t('shared.tooltips.shortcut', shortcut: 'ALT + 3')
             i.fa.fa-line-chart
@@ -29,30 +25,6 @@
 
       .tab-content
         #workspace.tab-pane.active = render('editor', exercise: @exercise, files: @files, submission: @submission)
-        #outputInformation.tab-pane data-message-no-output=t('.no_output')
-          #hint
-            .panel.panel-warning
-              .panel-heading = t('.hint')
-              .panel-body
-          .row
-            / #output-col1.col-sm-12
-            #output-col1
-              // todo set to full width if turtle isnt used
-              #prompt.input-group.hidden
-                span.input-group-addon data-prompt=t('exercises.editor.input') = t('exercises.editor.input')
-                input#prompt-input.form-control type='text'
-                span.input-group-btn
-                  button#prompt-submit.btn.btn-primary type="button" = t('exercises.editor.send')
-              #output
-                pre = t('.no_output_yet')
-              - if CodeOcean::Config.new(:code_ocean).read[:flowr][:enabled]
-                #flowrHint.panel.panel-info data-url=CodeOcean::Config.new(:code_ocean).read[:flowr][:url] role='tab'
-                  .panel-heading = 'Gain more insights here'
-                  .panel-body
-            #output-col2.col-lg-5.col-md-5
-              #turtlediv
-                // todo what should the canvas default size be?
-                canvas#turtlecanvas.hidden width=400 height=400 style='border-style:solid;border-width:thin'
         #progress.tab-pane
           #results
             h2 = t('.results')