Use DataSelector in Field remapping options and delete unused legacy MBQL code (#50458)

...hboardView_filters_Light_Theme_Date_Filter_Month_Year.png

frontend/src/metabase-lib/v1/Dimension.ts

frontend/src/metabase-lib/v1/metadata/Field.ts

frontend/src/metabase-lib/v1/metadata/Table.ts

frontend/src/metabase-lib/v1/queries/Query.ts

frontend/src/metabase-lib/v1/queries/StructuredQuery.ts

...dmin/datamodel/components/DimensionList/DimensionList.jsx

...tamodel/components/DimensionList/DimensionList.styled.tsx

...etabase/admin/datamodel/components/DimensionList/index.ts

.../datamodel/components/DimensionPicker/DimensionPicker.jsx

...del/components/DimensionPicker/DimensionPicker.styled.tsx

...abase/admin/datamodel/components/DimensionPicker/index.ts

...tabase/admin/datamodel/components/FieldList/FieldList.jsx

...rc/metabase/admin/datamodel/components/FieldList/index.ts

...ponents/FieldRemappingSettings/FieldRemappingSettings.jsx

.../FieldRemappingSettings/FieldRemappingSettings.styled.tsx

...MetadataFieldSettings/MetadataFieldSettings.unit.spec.tsx

...se/query_builder/components/DataSelector/DataSelector.jsx

...ataSelectorFieldPicker/DataSelectorFieldPicker.styled.tsx

...ector/DataSelectorFieldPicker/DataSelectorFieldPicker.tsx