Chore: ModalFooterControllers adoption (#26445)

...r/client/components/CreateDiscussion/CreateDiscussion.tsx

apps/meteor/client/components/GenericModal.tsx

...r/client/components/Omnichannel/modals/CloseChatModal.tsx

...client/components/Omnichannel/modals/ForwardChatModal.tsx

...nt/components/Omnichannel/modals/ReturnChatQueueModal.tsx

.../client/components/Omnichannel/modals/TranscriptModal.tsx

apps/meteor/client/components/modal/ModalBackdrop.tsx

apps/meteor/client/sidebar/header/CreateChannel.tsx

apps/meteor/client/sidebar/header/CreateDirectMessage.tsx

apps/meteor/client/sidebar/header/EditStatusModal.tsx

apps/meteor/client/views/account/preferences/MyDataModal.tsx

...meteor/client/views/account/security/BackupCodesModal.tsx

...eor/client/views/admin/apps/AppPermissionsReviewModal.tsx

apps/meteor/client/views/admin/apps/AppUpdateModal.tsx

apps/meteor/client/views/admin/apps/WarningModal.js

apps/meteor/client/views/admin/cloud/CopyStep.tsx

apps/meteor/client/views/admin/cloud/PasteStep.tsx

...rationCard/components/FederationModal/FederationModal.tsx

apps/meteor/client/views/admin/info/InstancesModal.js

apps/meteor/client/views/admin/info/OfflineLicenseModal.js