Dev#160166 newsletters

FEATURES/160166

+        '160166' =>
+            ['Label' => $this->_('Lettres d\'information : Les lettres d\'informations envoyées peuvent prendre une CSS qui permette de l\'afficher comme sur le site'),
+             'Desc' => '',
+             'Image' => '',
+             'Video' => '',
+             'Category' => 'Newsletters',
+             'Right' => function($feature_description, $user) {return true;},
+             'Wiki' => 'https://wiki.bokeh-library-portal.org/index.php?title=Lettre_d%27information',
+             'Test' => '',
+             'Date' => '2023-08-01'],
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