Add support to return other code in redirect plugin

[kj415j45]

Feature request

Please describe your feature

Currently, the redirect plugin can only configure ret_code with 301 and 302 through the dashboard. According to MDN - Redirections, there are more HTTP codes indicating the response is a redirect.

Describe the solution you'd like

Since the document of the redirect plugin does not specify the valid value. The dropdown selector should allow the user to manually enter a valid HTTP code.

Describe alternatives you've considered

The dashboard should at least allow the user to select the listed redirection codes:

• 300 (Multiple Choices)
• 301 (Moved Permanently)
• 302 (Found)
• 303 (See Other)
• 304 (Not Modified)
  • I'm not sure if this should be added as it's a special behavior.
• 307 (Temporary Redirect)
• 308 (Permanent Redirect)

Additional context

None