[https://github.com/tracim/tracim/issues/815] fixed workspace icon

frontend/src/component/Header/MenuActionListItem/AdminLink.jsx

 import React from 'react'
 import { Link } from 'react-router-dom'
-import { PAGE } from '../../../helper.js'
+import { PAGE, workspaceConfig } from '../../../helper.js'
 
 const AdminLink = props => {
   return (
 
         <div className='adminlink__setting dropdown-menu' aria-labelledby='dropdownMenuButton'>
           <Link className='setting__link dropdown-item' to={PAGE.ADMIN.WORKSPACE}>
-            <i className='fa fa-fw fa-space-shuttle mr-2' />
+            <i className={`fa fa-fw fa-${workspaceConfig.faIcon} mr-2`} />
             {props.t('Admin workspace')}
           </Link>
 

frontend/src/helper.js

 // Côme - 2018/08/02 - shouldn't this come from api ?
 export const workspaceConfig = {
   slug: 'workspace',
-  faIcon: 'space-shuttle',
+  faIcon: 'bank',
   hexcolor: '#7d4e24',
   creationLabel: 'Create a workspace',
   domContainer: 'appFeatureContainer'

frontend_app_workspace/src/container/PopupCreateWorkspace.jsx

 const debug = { // outdated
   config: {
     slug: 'workspace',
-    faIcon: 'space-shuttle',
+    faIcon: 'bank',
     hexcolor: '#7d4e24',
     creationLabel: 'Create a workspace',
     domContainer: 'appFeatureContainer',