bpo-37902: IDLE: Add scrolling for IDLE browsers. (GH-15368)


Modify the wheel event handler so it can also be used for module, path, and stack browsers.
Patch by George Zhang.
(cherry picked from commit 2cd902585815582eb059e3b40e014ebe4e7fdee7)

Co-authored-by: GeeTransit <geetransit@gmail.com>
7 files changed