5d5f319942
Allows detaching a window from LMMS's main window, making things like working on multiple screens easier. The behavior of detached windows can be customized in the Settings. Closes #1259 --------- Signed-off-by: Dalton Messmer <messmer.dalton@gmail.com> Co-authored-by: Hyunjin Song <tteu.ingog@gmail.com> Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com> Co-authored-by: SpomJ <mihail_a_m@mail.ru>