Upgrade Angular from v9.0.1 to v17.3.12

[devin-ai-integration]

Angular Upgrade from v9.0.1 to v17.3.12

This PR upgrades the angular2-hn application from Angular 9.0.1 to the latest Angular 17.3.12 version. The upgrade was performed incrementally through major versions (9→12→14→17) to ensure stability and compatibility.

Changes Made

Angular 12 Upgrade

• Updated Angular core packages to v12.2.0
• Updated RxJS from v6.5.4 to v7.4.0
• Updated TypeScript from v3.7.5 to v4.3.5
• Fixed RxJS imports (removed path-based imports)
• Updated zone.js import path in polyfills.ts

Angular 14 Upgrade

• Updated Angular core packages to v14.2.13
• Updated configuration files (tsconfig.json, angular.json)
• Added Angular compiler options for stricter type checking

Angular 17 Upgrade

• Updated Angular core packages to v17.3.12
• Updated TypeScript to v5.2.2
• Updated module imports and routing configuration
• Fixed RouterModule imports in feature modules
• Updated .gitignore to exclude Angular cache files

Testing

• Verified application starts successfully
• Tested navigation to different pages (News, Newest, Jobs, etc.)
• Confirmed item details view with comments works correctly
• Tested user profile view
• Verified settings functionality and theme switching
• Confirmed all UI elements render correctly with the new Angular version

Notes

• The application maintains the same visual appearance and functionality as before
• All core features continue to work as expected after the upgrade

Requested by: Shawn Azman ([email protected])
Link to Devin run: https://app.devin.ai/sessions/008faa2f84474c66a200e7efd648a62a

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[devin-ai-integration]

Closing due to inactivity for more than 7 days.