How do i include a js/html/css in meteor js?

i am working on a little project in meteor js with typescript.

i want to import the following: click

to begin i tried doing the basic usage explained on the link (note that its a tsx file)

return(
// some working code
  <link rel="stylesheet" href="../progress.css" />
      <script type="text/javascript" src="/progress.js"></script>
      <div className="ldBar" data-value="50">
      </div>

when i try to visit the website i cant see anything new if i add that code. However i get the following error

 Resource interpreted as Stylesheet but transferred with MIME type text/html: "http://localhost:3000/progress.css".

i tried both with the type tag and without but nothing changes. What am i doing wrong?

PS: all files are in the imports/ui folder