Allow users to mark a receipt as private

[raphael0202]

Some receipts contain personal information (fidelity card, user first and last name,...).
The API supports indicating a proof as private by setting is_public=false. A checkbox should be added on the frontend to allow to mark the receipt proof as private.

• edit proof API endpoint : feat: add update PATCH proof in api #401
• edit proof dialog : feat: new dialog to set RECEIPT as private #404
• add price multiple : option to set receipt as private : feat: Add price proof private in Add Price #405
• proof privacy chip in the footer : feat(proofs): display the proof receipt privacy status in the proof footer #468