chore: dev server load ts sources (#1580)

fixes dev server loading build js. removes need to restart server for
css changes

web-dev-server.config.js

@@ -47,5 +47,13 @@ export default pfeDevServerConfig({
         return next();
       }
     },
+    /** redirect requests for /(lib|elements)/*.js to *.ts */
+    function(ctx, next) {
+      if (!ctx.path.includes('node_modules') && ctx.path.match(/.*\/(lib|elements)\/.*\.js/)) {
+        ctx.redirect(ctx.path.replace('.js', '.ts'));
+      } else {
+        return next();
+      }
+    },
   ],
 });