Remove unused global css (#39220)

...omponents/FieldVisibilityPicker/FieldVisibilityPicker.tsx

frontend/src/metabase/css/admin.module.css

frontend/src/metabase/css/card.module.css

frontend/src/metabase/css/components/buttons.module.css

frontend/src/metabase/css/components/form.module.css

frontend/src/metabase/css/components/header.module.css

frontend/src/metabase/css/components/icons.module.css

frontend/src/metabase/css/components/list.module.css

frontend/src/metabase/css/components/table.module.css

...tend/src/metabase/css/containers/entity_search.module.css

frontend/src/metabase/css/core/base.module.css

frontend/src/metabase/css/core/grid.module.css

frontend/src/metabase/css/core/inputs.module.css

frontend/src/metabase/css/core/layout.module.css

frontend/src/metabase/css/core/link.module.css

frontend/src/metabase/css/core/overflow.module.css

frontend/src/metabase/css/core/rounded.module.css

frontend/src/metabase/css/core/shadow.module.css

frontend/src/metabase/css/core/transitions.module.css

frontend/src/metabase/css/dashboard.module.css