Update concepts.mdx

update frontmatter

Author: iManu

pages/key-manager/concepts.mdx

@@ -1,10 +1,6 @@
 ---
-meta:
-  title: Key Manager - Concepts
-  description: Explore essential cryptographic concepts, including symmetric and asymmetric encryption, data encryption keys (DEKs), key encryption keys (KEKs), and Scaleway Key Manager's robust features for secure key management and encryption operations.
-content:
-  h1: Concepts
-  paragraph: Explore essential cryptographic concepts, including symmetric and asymmetric encryption, data encryption keys (DEKs), key encryption keys (KEKs), and Scaleway Key Manager's robust features for secure key management and encryption operations.
+title: Key Manager - Concepts
+description: Explore essential cryptographic concepts, including symmetric and asymmetric encryption, data encryption keys (DEKs), key encryption keys (KEKs), and Scaleway Key Manager's robust features for secure key management and encryption operations.
 tags: key-manager key encryption-key
 dates:
   validation: 2025-02-06
@@ -190,4 +186,4 @@ Symmetric encryption is a fundamental type of cryptographic method where the sam
 
 Because symmetric encryption relies on a single key, it is generally fast and ideal for encrypting large volumes of data. However, its security depends entirely on keeping the key confidential.
 
-Symmetric encryption algorithms like AES are widely used in scenarios where speed and efficiency are critical. As of now, Key Manager only supports the `AES_256_GCM` symmetric encryption algorithm.
+Symmetric encryption algorithms like AES are widely used in scenarios where speed and efficiency are critical. As of now, Key Manager only supports the `AES_256_GCM` symmetric encryption algorithm.