fix!: remove dead v15 surface and restore v14 behaviors found by the API audit - #3328

fix!: remove dead v15 surface and restore v14 behaviors found by the API audit#3328

oliverlaz wants to merge 7 commits into

docs/v15-migration-guides-alignmentGetStream/stream-chat-react:docs/v15-migration-guides-alignmentfrom

fix/v15-dead-surface-cleanupGetStream/stream-chat-react:fix/v15-dead-surface-cleanupCopy head branch name to clipboard