Update the Vault docs home to add HVS and Vault Radar (#2535)

src/content/vault/docs-landing.json

@@ -1,6 +1,30 @@
 {
 	"pageSubtitle": "Vault is an identity-based secret and encryption management system. This documentation covers the main concepts of Vault, what problems it can solve, and contains a quick start for using Vault.",
 	"marketingContentBlocks": [
+		{
+			"type": "section-heading",
+			"title": "HCP Vault products"
+		},
+		{
+			"type": "icon-card-grid",
+			"cards": [
+				{
+					"iconName": "vault-color",
+					"text": "HCP Vault Dedicated",
+					"url": "/hcp/docs/vault/what-is-hcp-vault"
+				},
+				{
+					"iconName": "vault-secrets-color",
+					"text": "HCP Vault Secrets",
+					"url": "/hcp/docs/vault-secrets"
+				},
+				{
+					"iconName": "vault-radar-color",
+					"text": "HCP Vault Radar",
+					"url": "/hcp/docs/vault-radar"
+				}
+			]
+		},
 		{
 			"type": "section-heading",
 			"title": "Use Cases"