Apisix-dashboard: feat: show http response header in debug view

[qian0817]

Feature request

Please describe your feature

Currently only the response body is displayed, consider displaying the response header and response code at the same time.

[stu01509]

I would like to try this.

[juzhiyuan]

@stu01509 Hi, how about resolving other issues first? and I remember you have the GSoC task 🤔

[stu01509]

Hi @juzhiyuan

Actually, I almost have resolving other issues, waiting for merge and pass the test case,
and also @nic-chen recommend me to do more PR about the Backend issue.

[juzhiyuan]

ok got it, assign to you :)