Sort null, undefined and void in union types

[Raushen]

No description provided.

[Copilot]

Pull request overview

This pull request introduces an ESLint rule to enforce consistent ordering of “nullish” members in TypeScript union types (primarily for .d.ts files), and updates existing declaration files to comply with that rule across the DevExtreme type surface (including the generated dx.all.d.ts bundle and framework wrapper typings).

Changes:

• Added eslint-plugin-perfectionist to the workspace and packages/devextreme, and enabled perfectionist/sort-union-types for js/**/*.d.ts.
• Reordered union types in multiple .d.ts files to place null/undefined (and related “void” cases) at the end.
• Propagated the updated type ordering into the Angular TreeList wrapper typings (itemsExpr).

Reviewed changes

Copilot reviewed 4 out of 16 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pnpm-workspace.yaml	Adds eslint-plugin-perfectionist to the shared catalog for consistent dependency management.
pnpm-lock.yaml	Locks the newly added ESLint plugin (and its transitive deps) for reproducible installs.
packages/devextreme/package.json	Adds eslint-plugin-perfectionist as a devDependency used by the package ESLint config.
packages/devextreme/eslint.config.mjs	Enables perfectionist/sort-union-types for js/**/*.d.ts to enforce nullish union ordering.
packages/devextreme/js/common/charts.d.ts	Reorders unions (notably image/url) so undefined appears at the end.
packages/devextreme/js/viz/polar_chart.d.ts	Reorders unions so undefined is placed at the end for relevant members.
packages/devextreme/js/common/grids.d.ts	Reorders union return type to keep ordering consistent (`PromiseLike
packages/devextreme/js/ui/card_view.d.ts	Reorders union return type for setFieldValue for consistent union ordering.
packages/devextreme/js/ui/tree_list.d.ts	Reorders itemsExpr callback parameter union to move undefined to the end.
packages/devextreme/js/ui/chat.d.ts	Reorders unions so null is placed at the end for template options.
packages/devextreme/js/format_helper.d.ts	Reorders the format() input union to keep nullish types at the end.
packages/devextreme/js/core/utils/type.d.ts	Reorders isPrimitive type guard union to move nullish types to the end.
packages/devextreme/js/core/renderer.d.ts	Reorders renderer() parameter union for consistent type ordering.
packages/devextreme/js/core/index.d.ts	Reorders Scalar union to place `undefined
packages/devextreme/ts/dx.all.d.ts	Regenerates/updates the consolidated typings to reflect the new union ordering.
packages/devextreme-angular/src/ui/tree-list/index.ts	Aligns Angular wrapper itemsExpr typings with the updated core declaration signature.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

[Copilot]

Pull request overview

Copilot reviewed 45 out of 58 changed files in this pull request and generated 1 comment.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

[Copilot]

Pull request overview

Copilot reviewed 45 out of 58 changed files in this pull request and generated no new comments.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file