feat: add ViewCounter enhancements and file upload progress tracking

- Improved `ViewCounter` with visibility-based view increment using `IntersectionObserver` and 50% video progress tracking.
- Added real-time file upload progress updates via Socket.io, including status and percentage feedback.
- Integrated `ViewCounter` dynamically into `ContentCard` and removed redundant instances from static pages.
- Updated backend upload logic to emit progress updates at different stages via the `EventsGateway`.

frontend/src/app/(dashboard)/meme/[slug]/page.tsx

@@ -5,7 +5,6 @@ import { notFound } from "next/navigation";
 import { CommentSection } from "@/components/comment-section";
 import { ContentCard } from "@/components/content-card";
 import { Button } from "@/components/ui/button";
-import { ViewCounter } from "@/components/view-counter";
 import { ContentService } from "@/services/content.service";
 
 export const revalidate = 3600; // ISR: Revalider toutes les heures
@@ -42,7 +41,6 @@ export default async function MemePage({
 
 		return (
 			<div className="max-w-4xl mx-auto py-8 px-4">
-				<ViewCounter contentId={content.id} />
 				<Link
 					href="/"
 					className="inline-flex items-center text-sm mb-6 hover:text-primary transition-colors"