feat: upgrade to angular 20 and migrate to standalone architecture

[tcorral]

No description provided.

[Copilot]

Pull request overview

This pull request upgrades the application from Angular 19 to Angular 20 and migrates the architecture from NgModule-based to standalone components. This is a significant modernization effort that aligns with Angular's recommended architectural patterns and improves code maintainability, bundle size, and lazy loading capabilities.

Key Changes:

• Upgraded Angular and related dependencies from v19.2.0 to v20.3.0
• Migrated components from NgModule-based to standalone architecture
• Converted route modules to use loadComponent pattern for lazy loading
• Introduced provider functions (provideTransferJourney, provideTransactionsJourney, etc.) for standalone apps

Reviewed changes

Copilot reviewed 55 out of 58 changed files in this pull request and generated 20 comments.

Show a summary per file

File	Description
package.json	Upgraded Angular to 20.3.0, NgRx to 20.1.0, Nx to 22.0.3, and related dependencies
libs/transfer-journey/*	Migrated to standalone with new shell config and provider functions
libs/transactions-journey/*	Migrated to standalone with lazy-loaded components and provider pattern
libs/shared/feature/*	Converted shared components (navigation-menu, view-wrapper, user-context) to standalone
apps/golden-sample-app/*	Updated app components to standalone and routing to use loadComponent
libs/journey-bundles/*	Updated journey bundles to support standalone architecture
test files	Updated test configurations for standalone components and fixed deprecated Jest matchers

Critical Issues Found:

• Several components missing standalone: true property despite having imports arrays
• Incorrect injection token usage (string literal instead of InjectionToken)
• TypeScript version appears to be downgraded instead of upgraded
• Overly specific peer dependency versions in library package.json files
• Duplicate provider instances in component-level providers
• Import path issues for relocated tokens

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