Fix invalid casts for "About" and "Help" in Task Manager Settings
This fixes the issue in #43 (closed) where the "Help" button does nothing due to an assertion failure. During testing, it was also discovered that the "About" button, while actually displaying a dialog, also had an assertion failure for the same reason (widget
instead of user_data
being cast to GTK_WINDOW
). This merge request also resolves the additional issue.
Edited by Hunter Turcin