vault integrations docs (#4510)

* docs: Vault integrations (#3449)

* Index page

* Added basic navigation

* Starting the Vault integration page

* Bringing in content created by Danny Knights (danny.knights@hashicorp.com)

* Added <Note> for the information around Vault client count and amended wording

* Updated Overview, added hyperlinks, added Resources header

* Removed resources section to comply with the flow of the rest of the page

* Change KV to Key-Value and amended <Note> section

* Integrations changed to plural to match Consul

* Added Brokered Creds UI Screenshot

* Changed Boundary and Vault overview to integrations

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>

* Apply batch suggestions from code review

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: XingLu Wang <xinglu.wang@hashicorp.com>

* Update website/content/docs/integrations/vault/index.mdx

Co-authored-by: XingLu Wang <xinglu.wang@hashicorp.com>

---------

Co-authored-by: dannyjknights <dannyjknights@gmail.com>
Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>
Co-authored-by: XingLu Wang <xinglu.wang@hashicorp.com>

* removes package-lock.json

---------

Co-authored-by: Daniel Greeninger <daniel@greeninger.org>
Co-authored-by: dannyjknights <dannyjknights@gmail.com>
Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>
Co-authored-by: XingLu Wang <xinglu.wang@hashicorp.com>

website/data/docs-nav-data.json

@@ -1502,6 +1502,20 @@
       }
     ]
   },
+  {
+    "title": "Integrations",
+    "routes": [
+      {
+        "title": "Overview",
+        "path": "integrations"
+      },
+      {
+        "title": "Vault",
+        "path": "integrations/vault"
+      }
+    ]
+  },
+
   {
     "title": "Develop Boundary",
     "routes": [