[property-grid & tree-widget]: Upgrade TypeScript to 7.0

[saskliutas]

Updated TS version to 7.0.
Added explicit types for *TreeComponent exports that act as component and namespace. This was required because api-extractor was producing very ugly extraction and lost tags/comments. Explicit type solved this,

[github-actions]

Tree-Widget benchmark

Benchmark suite	Current: 3288c65	Previous: 8df07d4	Deviation	Status
models tree creates initial filtered view for 50k target items	684 ms	1071 ms	-36.13%	✅
models tree creates initial filtered view for 50k target items (P95 of main thread blocks)	53 ms	95 ms	-44.21%	〰️
models tree validates categories visibility for imodel with 50k categories	5570 ms	12371 ms	-54.98%	✅
models tree validates categories visibility for imodel with 50k categories (P95 of main thread blocks)	68 ms	85 ms	-20%	〰️
models tree changing model visibility changes visibility for 50k elements	2299 ms	3371 ms	-31.80%	✅
models tree changing model visibility changes visibility for 50k elements (P95 of main thread blocks)	86 ms	123 ms	-30.08%	〰️
models tree changing category visibility changes visibility for 50k elements	2151 ms	3344 ms	-35.68%	✅
models tree changing category visibility changes visibility for 50k elements (P95 of main thread blocks)	0 ms	23 ms	-100%	〰️
models tree changing per-model-category override changes visibility for 50k elements	2122 ms	3301 ms	-35.72%	✅
models tree changing per-model-category override changes visibility for 50k elements (P95 of main thread blocks)	0 ms	0 ms	0%	🟰
models tree changing element visibility changes only parent nodes visibility with 50k elements	3475 ms	4669 ms	-25.57%	✅
models tree changing element visibility changes only parent nodes visibility with 50k elements (P95 of main thread blocks)	56 ms	89 ms	-37.08%	〰️
categories tree creates initial filtered view for 50k items	1444 ms	1515 ms	-4.69%	〰️
categories tree creates initial filtered view for 50k items (P95 of main thread blocks)	417 ms	303 ms	37.62%	🚨
categories tree changing definition container visibility changes visibility for 50k subCategories	2273 ms	2811 ms	-19.14%	✅
categories tree changing definition container visibility changes visibility for 50k subCategories (P95 of main thread blocks)	43 ms	57 ms	-24.56%	〰️
categories tree changing definition container visibility changes visibility for 50k categories	4586 ms	5886 ms	-22.09%	✅
categories tree changing definition container visibility changes visibility for 50k categories (P95 of main thread blocks)	93 ms	126 ms	-26.19%	〰️

This comment was automatically generated by workflow using github-action-benchmark.

[Copilot]

Pull request overview

This PR updates the TypeScript/tooling setup for tree-widget and property-grid (plus related apps) and adjusts exported tree component typings to improve generated API extraction.

Changes:

• Updates TS configs (e.g., rootDir, updated lib, CJS config tweaks) and bumps TypeScript-related dependencies.
• Adds explicit callable “component + namespace” types for several *TreeComponent exports to improve api-extractor output.
• Adds *.scss module type declarations to packages that import SCSS.

Reviewed changes

Copilot reviewed 16 out of 23 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
packages/tree-widget/tsconfig.json	Adds rootDir and expands lib targets for TS 7-era libs.
packages/tree-widget/tsconfig.cjs.json	Adjusts CJS build compiler options (module resolution/conditions).
packages/tree-widget/src/tree-widget-react/components/trees/models-tree/ModelsTreeComponent.tsx	Introduces explicit exported component+namespace type to stabilize API extraction.
packages/tree-widget/src/tree-widget-react/components/trees/imodel-content-tree/IModelContentTreeComponent.tsx	Adds explicit component+namespace type for cleaner extracted API.
packages/tree-widget/src/tree-widget-react/components/trees/external-sources-tree/ExternalSourcesTreeComponent.tsx	Adds explicit component+namespace type for cleaner extracted API.
packages/tree-widget/src/tree-widget-react/components/trees/categories-tree/CategoriesTreeComponent.tsx	Adds explicit component+namespace type for cleaner extracted API.
packages/tree-widget/src/styles.d.ts	Adds *.scss module typing for TS.
packages/tree-widget/package.json	Updates TypeScript-related devDependencies.
packages/tree-widget/api/tree-widget-react.api.md	Updates generated API report to reflect new named component types.
packages/property-grid/tsconfig.lib.json	Adds rootDir for library build output consistency.
packages/property-grid/tsconfig.json	Adds Node types to base config and keeps DOM/ES libs.
packages/property-grid/src/styles.d.ts	Adds *.scss module typing for TS.
packages/property-grid/package.json	Updates TypeScript-related devDependencies.
packages/property-grid/pnpm-lock.yaml	Lockfile updates for TS/tooling dependency graph.
apps/test-viewer/package.json	Updates TypeScript-related devDependencies.
apps/test-viewer/pnpm-lock.yaml	Lockfile updates for TS/tooling dependency graph.
apps/performance-tests/tsconfig.json	Adds rootDir for build output consistency.
apps/performance-tests/package.json	Updates TypeScript-related devDependencies.
apps/performance-tests/pnpm-lock.yaml	Lockfile updates for TS/tooling dependency graph.
apps/learning-snippets/tsconfig.json	Adds rootDir for build output consistency.
apps/learning-snippets/package.json	Updates TypeScript-related devDependencies.

Files not reviewed (5)

• apps/learning-snippets/pnpm-lock.yaml: Generated file
• apps/performance-tests/pnpm-lock.yaml: Generated file
• apps/test-viewer/pnpm-lock.yaml: Generated file
• packages/property-grid/pnpm-lock.yaml: Generated file
• packages/tree-widget/pnpm-lock.yaml: Generated file

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[JonasDov]

Update test-utilities package. Other than that LGTM.