fix(tuto): fixed broken frontmatter (#4000)

Author: bene2k1

tutorials/deploy-angular-application/index.mdx

@@ -10,8 +10,6 @@ categories:
 dates:
   validation: 2024-11-18
   posted: 2022-04-26
-```
-
 ---
 
 Angular 18 is the latest development platform that scales from single-developer projects to enterprise-level applications. The platform provides enhanced performance, better server-side rendering, and a robust component-based framework.