🔨 rename map projection to region

[sophiamersmann]

Renames map.projection to map.region in configs and elsewhere.

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This is part 2 of 3 in a stack made with GitButler:

•  3  🚧 globe #4708
•  2  🔨 rename map projection to region #4707 👈
•  1  🔨 move ChoroplethMap to its own file #4706

[Copilot]

Pull Request Overview

This PR renames properties, variables, and functions related to map projection to instead use the terminology "region" throughout the codebase.

• Renames mapConfig property from "projection" to "region"
• Updates tests, migration scripts, and UI components to use "region"
• Removes the MapProjectionMenu in favor of the new MapRegionDropdown

Reviewed Changes

Copilot reviewed 29 out of 32 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/@ourworldindata/grapher/src/mapCharts/MapConfig.test.ts	Updated tests to use "region" instead of "projection"
packages/@ourworldindata/grapher/src/mapCharts/MapChartConstants.ts	Renamed interface property and adjusted constants
packages/@ourworldindata/grapher/src/mapCharts/MapChart.tsx	Updated methods and computed getters to use "region"
packages/@ourworldindata/grapher/src/mapCharts/GeoFeatures.ts	Renamed cache and helper functions from Projection to Region
packages/@ourworldindata/grapher/src/mapCharts/ChoroplethMap.tsx	Updated references to use region-based helpers and UI IDs
packages/@ourworldindata/grapher/src/index.ts	Updated exports to reflect the new region nomenclature
packages/@ourworldindata/grapher/src/core/GrapherUrl.ts	Adjusted mapping of query parameters from projection to region
packages/@ourworldindata/grapher/src/core/GrapherConstants.ts	Updated configuration flags and removed projection menu flag
packages/@ourworldindata/grapher/src/core/Grapher.tsx	Updated map config assignments and observables to "region"
packages/@ourworldindata/grapher/src/controls/controlsRow/ControlsRow.tsx	Replaced projection menu with region dropdown
packages/@ourworldindata/grapher/src/controls/MapRegionDropdown.tsx	New dropdown component for selecting map regions
db/migration/1743006325845-RenameMapProjectionToRegion.ts	Migration script updating JSON keys in DB from projection to region
adminSiteClient/GrapherConfigGridEditor.tsx	Updated field mappings and schema URL
adminSiteClient/EditorMapTab.tsx	Updated editor functions and SelectField options to use region
adminShared/SqlFilterSExpression.test.ts	Updated filter expressions to reflect the new region nomenclature
.github/workflows/check-default-grapher-config.yml	Added step to enable corepack in the workflow

Files not reviewed (3)

• devTools/schemaProcessor/columns.json: Language not supported
• packages/@ourworldindata/grapher/src/controls/MapRegionDropdown.scss: Language not supported
• packages/@ourworldindata/grapher/src/core/grapher.scss: Language not supported

Comments suppressed due to low confidence (3)

packages/@ourworldindata/grapher/src/mapCharts/GeoFeatures.ts:19

• [nitpick] Consider renaming 'geoPathsForProjectionOf' to 'geoPathsForRegion' to better reflect the new nomenclature consistently.

const geoPathsForProjectionOf = (regionName: MapRegionName): string[] => {

packages/@ourworldindata/grapher/src/mapCharts/GeoFeatures.ts:39

• [nitpick] Consider renaming 'geoBoundsForProjectionOf' to 'geoBoundsForRegion' to align with the updated terminology.

export const geoBoundsForProjectionOf = (

packages/@ourworldindata/grapher/src/mapCharts/GeoFeatures.ts:67

• [nitpick] Consider renaming 'renderFeaturesForProjectionOf' to 'renderFeaturesForRegion' for clearer and more consistent naming.

export const renderFeaturesForProjectionOf = (

[marcelgerber]

Wow, this really was a lot more work in a lot more places than I initially thought it would be. Thank you!