feat: support external auth token for Folksonomy editor

[swastikCommits]

What

Implemented the external token injection :

• Added an auth-token property to the <folksonomy-editor> and <folksonomy-editor-row> components.
• Updated the internal API layer (makeAuthenticatedRequest) to prioritize this external token if provided.
• Bypassed the default auth_by_cookie flow when an external token is present to ensure compatibility with host applications like Explorer auth states.

Part of

openfoodfacts/openfoodfacts-explorer#1145

[vercel]

@swastikCommits is attempting to deploy a commit to the openfoodfacts Team on Vercel.

A member of the Team first needs to authorize it.

[VaiTon]

I'd rather not embed the token in the DOM, instead pass a modified fetch that appends the token. What do you think?

[VaiTon]

Or, use the configuration component and add a function to it that "saves" the token in memory