Refactor of Remote Flow section

[peppelinux]

The current structure of the Remote Flow section is not easy to follow. For example, it starts with the details of the Request URI POST, even if in the flow this request occurs after the Authorization Request. To follow the order of the requests and responses presented in the flow, I suggest restructuring this section. Here a proposal

Remote Flow
[...]

1. Authorization Request
2. Request URI Request
   With HTTP GET
   With HTTP POST
3. Request URI Response
   Request Object Details
   Request URI Endpoint Errors
4. “Authorization Response” Request
   SD-JWT Presentation
5. “Authorization Response” Response
   Redirect URI
   Redirect URI Errors
   Authorization Response Errors
6. Device Flow Status Checks and Security

Originally posted by @giadas in #507 (comment)