When restricting MIME Types, Folders can't be created in Supabase UI

[streco]

When using a MIME Type restriction, when you try and create folders in the Supabase UI, it allows you to input a name, submit it, and it renders in the view as if the folder is created, but the folder is not actually created (confirmed by page refresh)

Steps to reproduce the behavior, please provide code snippets or a repository:

1. Go to storage and create a new bucket
2. Edit the bucket and set "Allowed MIME type" to any value
3. Create a folder

Expected Result:
Several options:

1. Show error message that "Folder cannot be created because it's MIME Type does not match the restriction".
2. Have a checkbox to include folders from MIME type checks
3. Always exclude folders from MIME type restrictions

This is a minor UX issue

[Meyazhagan]

When new folder is created, a placeholder file is added to path .emptyFolderPlaceholder. And getting MIME type errors.
We need to skip type check for this file.

[Hallidayo]

@Meyazhagan - Yep I can see this as well in the network panel:

Seems like a check is needed here when the folder is created.