New media picker not respecting max file size setting for attachments

Summary

The new media picker doesn't respect the file upload limit set in. Settings > General > Attachment limit.

Steps to Reproduce

1. Edit/verify the "Attachment Maximum Size" setting in Settings > General configuration
   
2. Edit a page
3. Add an attachment(that is intentionally larger the attachment size limit) via the new media picker

Expected Results

• A message is shown advising the user that the file size of the file selected is larger than the set limit allows

Actual Results

• The media picker allows the file to be uploaded. Validation is bypassed
  
  (file size of the attachment is 1MB)

Notes

• The old media picker doesn't have this issue - uploading files that exceed the set limit in the Confluence settings is not allowed
  

Workaround

• No known workarounds, if a workaround is found - then we'll add one here
• Reach out to https://support.atlassian.com/contact/ as a site-admin if you need to know the storage usage per space and page