[studio] Synchronize position in Before/After/Output panels

[with-heart]

Issue Description

Select one of:
[ ] Generated codemod is not correct
[ ] Bug in Codemod Studio
[x] UI/UX improvement request
[?] Feature request

When working in one of the Before/After/Output panels in the studio, it would sometimes be helpful to automatically scroll to the corresponding position in the other panels. This is especially true when the input is thousands of lines of code as that requires lots of scrolling.

Actual Results

When reviewing Before/After/Output, comparing the contents of each panel requires scrolling in three separate panels.

Expected Results

When reviewing Before/After/Output, comparing the contents of each panel requires scrolling in only a single panel.

[alexbit-codemod]

absolutely genius!
this was also brought up before... this makes things really really cool and easy to track.
cc @mohebifar

[mohab-sameh]

@all-contributors add @with-heart for ideas

[allcontributors]

@mohab-sameh

I've put up a pull request to add @with-heart! 🎉