feat: remonte Partenaires en item principal du menu, aligné sur l'ordre de la page

src/_data/i18n/en/navigation.json

@@ -1,6 +1,7 @@
 [
   { "text": "Solutions", "url": "/en/#solutions" },
   { "text": "Our projects", "url": "/en/#projets" },
+  { "text": "Partners", "url": "/en/#partenaires" },
   { "text": "DJANGOKAM", "url": "/en/#djangokam" },
   { "text": "Services", "url": "/en/#hebergement" },
   { "text": "Donate", "url": "/en/donate/" },
@@ -9,7 +10,6 @@
     "children": [
       { "text": "Our work", "url": "/en/#clients" },
       { "text": "Our instances", "url": "/en/#services-libres" },
-      { "text": "Partners", "url": "/en/#partenaires" },
       { "text": "FAQ", "url": "/en/#faq" },
       { "text": "Press", "url": "/en/press/" },
       { "text": "Labola", "url": "https://labola.o-k-i.net/", "external": true }