fix: update tags for project entries to improve categorization

Author: pphatdev

content/projects/ebook-nintrea-top/index.mdx

@@ -3,7 +3,7 @@ title: "eLibrary (Nintrea)"
 slug: "ebook-nintrea-top"
 description: "A Khmer-focused digital eLibrary web app for browsing categories, viewing book details, and reading content with a responsive Next.js interface."
 image: "/assets/projects/ebooks.nintrea.top/light-1.webp"
-tags: ["Library", "Education", "Khmer"]
+tags: ["eLibrary", "Website"]
 languages: ["Next.js", "TypeScript", "TailwindCSS", "Supabase"]
 source:
   - 

content/projects/king-mart-shop/index.mdx

@@ -3,7 +3,7 @@ title: "King Mart Shop"
 slug: "king-mart-shop"
 description: "An online shopping platform for King Mart Cambodia, featuring product discovery, category browsing, promotions, account tools, and mobile app access for everyday retail customers."
 image: "/assets/projects/king-mart.shop/light-1.webp"
-tags: ["E-commerce", "Retail", "Online Shopping"]
+tags: ["E-commerce", "Website"]
 languages: ["Laravel", "JavaScript", "TailwindCSS"]
 source:
   - 

content/projects/pphat-netlify-app/index.mdx

@@ -3,7 +3,7 @@ title: "pphat.netlify.app"
 slug: "pphat-netlify-app"
 description: "A personal portfolio website for PPhat, showcasing frontend expertise, work experience, tech stack, and featured projects."
 image: "https://pphat.me/assets/projects/pphat.netlify.app/pphat.netlify.app.webp"
-tags: ["Portfolio", "Blogs", "Projects"]
+tags: ["Portfolio", "blog", "Projects"]
 languages: ["Next.js", "TailwindCss", "Shadcn"]
 source:
   - 

content/projects/red-ant-express/index.mdx

@@ -3,7 +3,7 @@ title: "Red Ant Express Cambodia"
 slug: "red-ant-express"
 description: "A logistics and delivery service website for Red Ant Express, featuring service discovery, technology highlights, tracking flow, and contact access for customers and business partners."
 image: "/assets/projects/red-ant-express.com.kh/light-1.webp"
-tags: ["Delivery", "Corporate Website"]
+tags: ["Delivery", "Website"]
 languages: ["Laravel", "TailwindCSS", "JavaScript", "JQuery"]
 source:
   -