Updated security b2b authentication details (#557)

<!-- Ticket number or summary of work -->
# [DEVDOCS-5655]


## What changed?
Updating security information

## Release notes draft

n/a 

## Anything else?
<!-- Add related PRs, salient notes, additional ticket numbers, etc. -->

ping {names}


[DEVDOCS-5655]:
https://bigcommercecloud.atlassian.net/browse/DEVDOCS-5655?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

docs/b2b-edition/specs/storefront/storefront/catalog.yaml

@@ -3,10 +3,14 @@ info:
   title: Catalog
   version: '1.0'
   description: The Catalog refers to a store’s collection of physical and digital products.
+  contact:
+    name: BigCommerce
+    url: 'https://www.bigcommerce.com'
+    email: [email protected]
 servers:
   - url: 'https://api-b2b.bigcommerce.com/api/v2'
 security:
-  - authToken: []
+  - BearerToken: []
 paths:
   /catalogs/variants:
     get:
@@ -364,9 +368,13 @@ paths:
 components:
   schemas: {}
   securitySchemes:
-    authToken:
-      name: authToken
-      description: Include the `authToken` in a header parameter.
+    BearerToken:
+      name: BearerToken
+      description: |-
+        ### Authentication header
+        | Header | Argument | Description |
+        |:-------|:---------|:------------|
+        |`Authorization`|`Bearer {{B2B_JWT_TOKEN}}`| Obtained using the [BigCommerce Current Customer API](/docs/rest-authentication/current-customer) endpoint. |
       type: apiKey
       in: header
 tags:

docs/b2b-edition/specs/storefront/storefront/sales-rep.yaml

@@ -3,8 +3,14 @@ info:
   title: Super Admin
   version: '1.0'
   description: Super Admin is a group of sales representatives assigned to the company.
+  contact:
+    name: BigCommerce
+    url: 'https://www.bigcommerce.com'
+    email: [email protected]
 servers:
   - url: 'https://api-b2b.bigcommerce.com/api/v2'
+security:
+  - BearerToken: []
 paths:
   '/sales-reps/{userId}/companies/{companyId}/begin-masq':
     parameters:
@@ -84,8 +90,6 @@ paths:
         Equivalent Storefront GraphQL API Mutation: `superAdminBeginMasquerade`. For more information, see the [GraphQL Playground](https://api-b2b.bigcommerce.com/graphql/playground).
       tags:
         - Super Admin
-      security:
-        - authToken: []
   '/sales-reps/{userId}/companies/{companyId}/end-masq':
     parameters:
       - schema:
@@ -140,8 +144,6 @@ paths:
         Equivalent Storefront GraphQL API Mutation: `superAdminEndMasquerade`. For more information, see the [GraphQL Playground](https://api-b2b.bigcommerce.com/graphql/playground).
       tags:
         - Super Admin
-      security:
-        - authToken: []
   '/sales-reps/{customerId}/companies/masquerading':
     parameters:
       - schema:
@@ -456,8 +458,6 @@ paths:
         Equivalent Storefront GraphQL API Query: `superAdminCompanies`. For more information, see the [GraphQL Playground](https://api-b2b.bigcommerce.com/graphql/playground).
       tags:
         - Super Admin
-      security:
-        - authToken: []
       parameters:
         - schema:
             type: integer
@@ -540,18 +540,18 @@ paths:
       description: Update super admin assign company.
       tags:
         - Super Admin
-      security:
-        - authToken: []
       x-internal: true
 components:
   schemas: {}
   securitySchemes:
-    authToken:
-      name: authToken
-      description: Include the `authToken` in a header parameter.
+    BearerToken:
+      name: BearerToken
+      description: |-
+        ### Authentication header
+        | Header | Argument | Description |
+        |:-------|:---------|:------------|
+        |`Authorization`|`Bearer {{B2B_JWT_TOKEN}}`| Obtained using the [BigCommerce Current Customer API](/docs/rest-authentication/current-customer) endpoint. |
       type: apiKey
       in: header
-security:
-  - authToken: []
 tags:
   - name: Super Admin