chore: upgrade Angular 19 to 21 and update dependencies}
- Bump Angular from 19.1.4 to 21.2.6 across all packages - Upgrade TypeScript from 5.6.3 to 5.9.3 - Upgrade Node.js target from v22.13.1 to v24.14.1 - Upgrade ng-packagr from 19.0.1 to 21.2.1 - Upgrade @angular-devkit/build-angular and @angular/cli to 21.2.4 - Upgrade webpack-bundle-analyzer from 4.x to 5.3.0 - Upgrade postcss from 8.5.1 to 8.5.8 and @types/node to 25.5.0 - Bump project version from 2025.4.124 to 2026.4.101 - Replace *ngFor directive with @for control flow syntax in templates - Remove NgFor import from app component (no longer needed) - Add provideZoneChangeDetection() to bootstrap providers - Switch moduleResolution from "node" to "bundler" in tsconfig.json - Remove explicit "lib" arrays from tsconfig.json and tsconfig.lib.json - Add Angular schematics configuration to angular.json - Update API endpoint URLs from server.patrikx3.com to network.corifeus.com - Add trailing newline to .npmignore - Regenerate yarn.lock with updated dependencies