Colored response codes based on status code

[liyasthomas]

Is your feature request related to a problem? Please describe.
It would've been great to analyse request responses if they are colored based on their status codes. Ex: green for 200, yellow for 301, red for 404 etc.

Describe the solution you'd like
Show colored responses based on its status code to easily identify the response status. Add a class name based on status code to color the status code. Preserve the same for history section.

Describe alternatives you've considered
The only way to identify status codes are manually checking them. Colored codes would help it 100x times.

Additional context
History section should also follow these colored responses for future reference. Add a string for history array to contain color class.

[liyasthomas]

Closing the issue since #52 solved it