Add query for listContributions.

backend/src/seeds/graphql/queries.ts

@@ -172,6 +172,24 @@ export const queryTransactionLink = gql`
   }
 `
 
+export const listContributions = gql`
+  query (
+    $currentPage: Int = 1
+    $pageSize: Int = 5
+    $order: Order
+    $filterConfirmed: Boolean = false
+  ) {
+    listContributions(
+      currentPage: $currentPage
+      pageSize: $pageSize
+      order: $order
+      filterConfirmed: $filterConfirmed
+    ) {
+      amount
+      memo
+    }
+  }
+`
 // from admin interface
 
 export const listUnconfirmedContributions = gql`