Use sentence case for temporal bucket names (#30875)

e2e/test/scenarios/binning/binning-options.cy.spec.js

e2e/test/scenarios/binning/binning-reproductions.cy.spec.js

e2e/test/scenarios/binning/correctness/shared/constants.js

...test/scenarios/binning/correctness/time-series.cy.spec.js

e2e/test/scenarios/custom-column/custom-column.cy.spec.js

e2e/test/scenarios/question/summarization.cy.spec.js

e2e/test/scenarios/sharing/reproductions/16918.cy.spec.js

frontend/src/metabase-lib/Dimension.ts

...d/src/metabase-types/api/mocks/presets/sample_database.ts

src/metabase/api/table.clj

src/metabase/pulse/render/datetime.clj