I'm converting an AngularJS 1.5.9 project to Angular 19 using the upgrade module. However, I'm facing significant issues with the project routing and CSS and html. Requirements: - Fix CSS issues which are causing everything to look wrong. - Ensure styling and theme consistency throughout the application. - Bootstrap should be used for styling - Html and routing should work Ideal Skills and Experience: - Strong expertise in Angular and AngularJS - Proficient in Bootstrap - CSS mastery, especially in resolving complex styling issues - Experience with Angular upgrade processes