* Minor code quality fixes found by Codacy
* Fix unused variables when WITH_XC_NETWORKING is OFF
* Fix#2684, resolve entry references from the root group
* Fix#2697 and Fix#2699, listen specifically for
WM_QUERYENDSESSION and WM_ENDSESSION on
Windows to gracefully shutdown KeePassXC
* Cleanup proxy code and add explicit closure for
shutdown messages
Many lines were not conformant with the project's formatting rules.
This patch should fix all formatting and whitespace issues in the code
base.
A clang-format directive was put around the connect() calls containing
SIGNALs and SLOTs whose signatures would be denormalized because of the
formatting rules.
