c657892bc8
Publishing a gallery with no inline customer_email but assigned customer account(s) previously sent nothing (the dialog said "no notification"). Now the publish route falls back to the existing customer_gallery_assigned "your galleries" email (sent per assigned active account in their preferred language) so registered customers learn the gallery is available. Inline-email path (gallery_created) is unchanged. The publish dialog now reflects this: with an inline email it notifies that address; with only assigned accounts it says the account(s) will be notified; with neither, the button is just "Publish" (no false notify promise). Exports notifyCustomerOfNewAssignments; EN/DE strings added.