Angular: Add deprecated nested components migration tool

[ajivanyandev]

Add CLI command to help with migration process to our latest configuration components in angular

[VasilyStrelyaev]

LGTM, but we need to show it to others

[Copilot]

Pull Request Overview

This PR introduces a new migration tool for DevExtreme Angular applications that automatically converts deprecated nested configuration components to the new component-specific naming structure. The migration is implemented as an Angular schematic and exposed through the DevExtreme CLI.

Key changes:

• Added a new migrate-config-components schematic with HTML and inline template processing capabilities
• Integrated the migration command into the DevExtreme CLI as devextreme migrate angular-config-components
• Includes comprehensive mapping of 60+ DevExtreme components and their configuration elements

Reviewed Changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
packages/devextreme-schematics/tsconfig.json	Enabled TypeScript compiler options for JSON module imports
packages/devextreme-schematics/src/migrate-config-components/template-migrator.ts	Core migration logic for transforming HTML templates and inline component templates
packages/devextreme-schematics/src/migrate-config-components/schema.json	JSON schema defining migration command options
packages/devextreme-schematics/src/migrate-config-components/mappings/deprecated-config-map.json	Complete mapping of deprecated to new component selectors for all DevExtreme components
packages/devextreme-schematics/src/migrate-config-components/index.ts	Schematic entry point orchestrating the migration process
packages/devextreme-schematics/src/migrate-config-components/README.md	Documentation for the migration tool
packages/devextreme-schematics/src/collection.json	Registered the new schematic in the collection
packages/devextreme-schematics/package.json	Added parse5 and picomatch dependencies for HTML parsing
packages/devextreme-schematics/README.md	Added TypeScript dependency troubleshooting documentation
packages/devextreme-cli/src/commands.json	CLI command definition for the migration tool
packages/devextreme-cli/src/applications/application.angular.js	Implementation of migration command with automatic package installation
packages/devextreme-cli/src/application.js	Migration command routing logic
packages/devextreme-cli/index.js	CLI entry point integration for migration commands

Files not reviewed (1)

• packages/devextreme-schematics/package-lock.json: Language not supported

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