Behat: Open sans default font in tinymce

[Rebecca Blundell]

Automating manual test. Notes from spreadsheet (20.04 WIP):

Verify “opensans” is default font
1) Account menu>Profile>Introduction
2) Main menu>Create>Pages and collections>Add>Page>Page description
3) Main menu>Create>Pages and collections>Add>Page>Add Text block>Content

This check can be added anywhere there is a tinymce editor on the page. One example would be the edit_journal feature. Just make a note where you put with this bug number so we know why it's there. The steps are:

 And I click the "Toggle toolbars on. Show full list of buttons" button in the editor
 And I should see "Open sans"