docs - sdk edits (#49480)

docs/embedding/sdk/appearance.md

docs/embedding/sdk/authentication.md

docs/embedding/sdk/collections.md

docs/embedding/sdk/config.md

docs/embedding/sdk/dashboards.md

docs/embedding/sdk/introduction.md

docs/embedding/sdk/next-js.md

docs/embedding/sdk/plugins.md

docs/embedding/sdk/questions.md

docs/embedding/sdk/quickstart-cli.md

docs/embedding/sdk/quickstart.md

docs/embedding/sdk/version.md

enterprise/frontend/src/embedding-sdk/README.md