fix: pass the root_path as shared data in actix

[Angelmmiguel]

Ensure the root_path property is passed as a Actix data to the handlers. I also fixed the type to the right one. After applying it, wws is properly returning the 404 or the static asset:

Favicon.ico is missing

⚙️  Loading routes from: ./examples/js-basic
🗺  Detected routes:
    - http://127.0.0.1:9090/
      => ./examples/js-basic/index.js (name: default)
🚀 Start serving requests at http://127.0.0.1:9090

[2023-03-15T16:19:15Z INFO  actix_web::middleware::logger] 127.0.0.1 "GET / HTTP/1.1" 200 827 "-" "..." 0.028136
[2023-03-15T16:19:15Z INFO  actix_web::middleware::logger] 127.0.0.1 "GET /favicon.ico HTTP/1.1" 404 0 "http://localhost:9090/" "..." 0.001388

Favicon.ico is present

⚙️  Loading routes from: ./examples/js-basic
🗺  Detected routes:
    - http://127.0.0.1:9090/
      => ./examples/js-basic/index.js (name: default)
🚀 Start serving requests at http://127.0.0.1:9090

[2023-03-15T16:19:15Z INFO  actix_web::middleware::logger] 127.0.0.1 "GET / HTTP/1.1" 200 827 "-" "..." 0.028136
[2023-03-15T16:20:44Z INFO  actix_web::middleware::logger] 127.0.0.1 "GET /favicon.ico HTTP/1.1" 200 15406 "http://localhost:9090/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/109.0" 0.005634

It closes #111