Responsive Job Searching Site with Angular

Since I'm not fetching the data from a server, I found a bit tricky keeping the data on the page after reloading it. Both on the Job-Details Component and when using params for filtering the posts.

I'm not sure I implemented the media queries very efficiently and used assets efficiently in the navbar and search components.

What are some best practices for optimizing website performance, and how can I implement them in my project?