:sparkles: add dashboard with organization actualities

[Code-Hello]

Ticket : https://app.clickup.com/t/860q4c9jf

• add dashboard page
• add dashboard organization's news

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[Godefroy]

Bon début ! Ca va dans le bon sens 😃

Peux-tu mettre une capture image ou vidéo pour démo en description de la PR stp ?

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[Godefroy]

PR terminée par #111 et #112