Add "next" URL to job completion response

Added a "next" action in the job completion response that redirects users to the "Available Downloads" section of the Files page in Flatfile.

This enhancement provides a smoother user experience by guiding users directly to their exported files.

plugins/export-workbook/src/plugin.ts

@@ -198,6 +198,11 @@ export const run = async (
         outcome: {
           message:
             'Data was successfully written to Excel file and uploaded. You can access the workbook in the "Available Downloads" section of the Files page in Flatfile.',
+            next: {
+              type: 'url',
+              url: `https://spaces.flatfile.com/space/${spaceId}/files?mode=export`,
+              label: 'Available Downloads',
+            },
         },
       })