[https://github.com/tracim/tracim/issues/816] fixed url for btn create content in dashboard + removed comment from content type list in create content dropdown

frontend/src/container/Dashboard.jsx

             </div>
 
             <div className='dashboard__calltoaction justify-content-xl-center'>
-              {props.appList.map(app =>
-                <ContentTypeBtn
-                  customClass='dashboard__calltoaction__button'
-                  hexcolor={app.hexcolor}
-                  label={app.label}
-                  faIcon={app.faIcon}
-                  creationLabel={(props.contentType.find(ct => app.slug.includes(ct.slug)) || {creationLabel: ''}).creationLabel}
-                  onClickBtn={() => props.history.push(PAGE.WORKSPACE.NEW(props.curWs.id, app.slug))}
-                  key={app.label}
-                />
-              )}
+              {props.appList.map(app => {
+                const contentType = props.contentType.find(ct => app.slug.includes(ct.slug)) || {creationLabel: '', slug: ''}
+                return (
+                  <ContentTypeBtn
+                    customClass='dashboard__calltoaction__button'
+                    hexcolor={app.hexcolor}
+                    label={app.label}
+                    faIcon={app.faIcon}
+                    creationLabel={contentType.creationLabel}
+                    onClickBtn={() => props.history.push(`${PAGE.WORKSPACE.NEW(props.curWs.id, contentType.slug)}?parent_id=null`)}
+                    key={app.label}
+                  />
+                )
+              })}
             </div>
 
             <div className='dashboard__workspaceInfo'>

frontend/src/container/WorkspaceContent.jsx

 
   handleClickCreateContent = (e, idFolder, contentType) => {
     e.stopPropagation()
-    this.props.history.push(`${PAGE.WORKSPACE.NEW(this.state.workspaceIdInUrl, contentType, idFolder)}?parent_id=${idFolder}`)
+    this.props.history.push(`${PAGE.WORKSPACE.NEW(this.state.workspaceIdInUrl, contentType)}?parent_id=${idFolder}`)
   }
 
   handleUpdateAppOpenedType = openedAppType => this.setState({appOpenedType: openedAppType})
               parentClass='workspace__header__btnaddcontent'
               idFolder={null} // null because it is workspace root content
               onClickCreateContent={this.handleClickCreateContent}
-              availableApp={contentType}
+              availableApp={contentType.filter(ct => ct.slug !== 'comment')} // @FIXME: Côme - 2018/08/21 - should use props.appList
             />
           </PageTitle>
 
               { filteredWorkspaceContentList.map((c, i) => c.type === 'folder'
                 ? (
                   <Folder
-                    availableApp={contentType}
+                    availableApp={contentType.filter(ct => ct.slug !== 'comment')} // @FIXME: Côme - 2018/08/21 - should use props.appList
                     folderData={c}
                     onClickItem={this.handleClickContentItem}
                     onClickExtendedAction={{
               customClass='workspace__content__button'
               idFolder={null}
               onClickCreateContent={this.handleClickCreateContent}
-              availableApp={contentType}
+              availableApp={contentType.filter(ct => ct.slug !== 'comment')} // @FIXME: Côme - 2018/08/21 - should use props.appList
             />
           </PageContent>