Store pre-request scripts in history

[aeeed99]

relates to #218

Is your feature request related to a problem? Please describe.
Histories of requests with pre-request script does not retain pre-request script

Describe the solution you'd like
script use in the original request should be preserved and loaded when clicked

Describe alternatives you've considered
Clicking the history, praying the app gains consciousness and remembers the pre-request script on its own.

Additional context
none.