Refactor for i18n, CMS integration, and project slugs; enhance admin & analytics

Co-authored-by: dennis <dennis@konkol.net>

app/projects/[slug]/page.tsx

@@ -6,9 +6,11 @@ import Link from 'next/link';
 import { useParams } from 'next/navigation';
 import { useState, useEffect } from 'react';
 import ReactMarkdown from 'react-markdown';
+import { useLocale, useTranslations } from "next-intl";
 
 interface Project {
   id: number;
+  slug: string;
   title: string;
   description: string;
   content: string;
@@ -24,6 +26,8 @@ interface Project {
 const ProjectDetail = () => {
   const params = useParams();
   const slug = params.slug as string;
+  const locale = useLocale();
+  const t = useTranslations("common");
   const [project, setProject] = useState<Project | null>(null);
 
   // Load project from API by slug
@@ -90,11 +94,11 @@ const ProjectDetail = () => {
           className="mb-8"
         >
           <Link
-            href="/projects"
+            href={`/${locale}/projects`}
             className="inline-flex items-center space-x-2 text-stone-500 hover:text-stone-900 transition-colors group"
           >
             <ArrowLeft size={20} className="group-hover:-translate-x-1 transition-transform" />
-            <span className="font-medium">Back to Projects</span>
+            <span className="font-medium">{t("backToProjects")}</span>
           </Link>
         </motion.div>