Add reorderCookieCategory mutation

Category reordering previously required two separate
updateCookieCategory calls to swap ranks, which was not
atomic. Replace with a single reorderCookieCategory mutation
that shifts all affected ranks in one SQL statement, and
remove the rank field from UpdateCookieCategoryInput.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/server/api/console/v1/graphql/cookie_banner.graphql

@@ -169,6 +169,9 @@ extend type Mutation {
     deleteCookieCategory(
         input: DeleteCookieCategoryInput!
     ): DeleteCookieCategoryPayload!
+    reorderCookieCategory(
+        input: ReorderCookieCategoryInput!
+    ): ReorderCookieCategoryPayload!
 }
 
 input CreateCookieBannerInput {
@@ -218,7 +221,6 @@ input UpdateCookieCategoryInput {
     cookieCategoryId: ID!
     name: String
     description: String
-    rank: Int
     cookies: [CookieItemInput!]
 }
 
@@ -226,6 +228,11 @@ input DeleteCookieCategoryInput {
     cookieCategoryId: ID!
 }
 
+input ReorderCookieCategoryInput {
+    cookieCategoryId: ID!
+    rank: Int!
+}
+
 input CookieItemInput {
     name: String!
     duration: String!
@@ -271,3 +278,7 @@ type DeleteCookieCategoryPayload {
     deletedCookieCategoryId: ID!
     cookieBanner: CookieBanner!
 }
+
+type ReorderCookieCategoryPayload {
+    cookieBanner: CookieBanner!
+}