Implemented HLS player (client-side), added scaffold for server-side HLS streamer

web/js/api/libraries.js

@@ -2,6 +2,9 @@ import * as auth from '/web/js/api/auth.js';
 import ky from 'https://cdn.jsdelivr.net/npm/ky@1.14.1/+esm'
 
 export async function ls(library, path) {
+    //fix: remove double slashes from path
+    path = path.replace("//", "/")
+
     try {
         const response = await ky.get(`/libraries/${library}/${path}`, {
             headers: {