Add creation Article in new window editable

[kasdihacene]

• The aim of this issue is to create a new article:

• As a developper I can see a new button (Add article) when connected as admin

• when I click on the button I will be redirected to a page /new-article

• On the new page a section with title and texte area will be displayed to fill a title and presentation of the article

• a group of three buttons (TITLE - IMAGE - CODE) will be displayed in the button of the page

• at the beggining I display input text (Title) and presentation section

• I delimit the text area and buttons with . . . than I put the group of buttons

• a group of button will be displayed under the . . . (+ Title) (+ Text) (+ Image) (+ Code) - float right

• a button (Save article) will be displayed in the same line as a group of buttons on the left

Scenarios

1. Four buttons are enabled:

• when we have a text area as last element in the new-article page

2. (+ Title) is disabled:

• when we have a title as last element in the page

Technical solution:

• Every element will be presented as a TS object
• The content of the article will be stored as markdown content
• The compiler will generate the html and the html (preview) will be persisted as value of key (articleName, contentHtml from md)