httpd: add Javascript media types

esp32/max80/httpd.c

@@ -68,6 +68,8 @@ static const struct mime_type mime_types[] = {
     { ".ico",   4, "image/png"                 }, /* favicon.ico */
     { ".svg",   4, "image/svg+xml"             },
     { ".pdf",   4, "application/pdf"           },
+    { ".js",    3, "text/javascript"           },
+    { ".mjs",   4, "text/javascript"           },
     { ".xml",   4, "text/xml"                  },
     { ".bin",   4, "application/octet-stream"  },
     { ".fw",    3, "application/octet-stream"  },