Significant improvements to the Auto-Type select dialog. Reduce stale and unnecessary code paths.
* Close select dialog when databases are locked.
* Close open modal dialogs prior to showing the Auto-Type select dialog to prevent interference.
* Never perform Auto-Type on the KeePassXC window.
* Only filter match list based on Group, Title, and Username column data (ie, ignore sequence column)
* Always show the sequence column (revert feature)
* Show selection dialog if there are no matches to allow for a database search
* Close#3630 - Allow typing {USERNAME} and {PASSWORD} from selection dialog (right-click menu).
* Close#429 - Ability to search open databases for an entry from the Auto-Type selection dialog.
* Fix#5361 - Default size of selection dialog doesn't cut off matches
* Fix#5313, allow specifying local config path using environment variable and command line flag
* Add command line flag `--localconfig <path>` to specify a file path to use for the local configuration settings.
* Add environment variable support to set config files paths: `KPXC_CONFIG` and `KPXC_CONFIG_LOCAL` to override default locations.
* Reorder startup sequence to load specified config files earlier to allow for theme settings and other early options to be picked up.
* Removed old command line option `--pw`, no longer used.
* Attempt a fix of application not closing when last window is gone. Only set `QApplication::setQuitOnLastWindowClosed(true)` when tray icon is enabled instead of always.
