1. Fixed crash on OSX after change of the settings layout (PreferencesDialog should be destroyed before call of recreate_GUI)
2. Fixed dialog message during GUI recreation
3. In PreferencesDialog changed radio buttons view (under OSX they were bold)
4. slDlg mode - fixed switching between main frame and settings dialog (dialog->SetFocus() doesn't work under OSX, so we just hide it and show again)
1. PreferencesDialog: When "Cancel" is selected, don't close the PreferencesDialog, just revert layout mode selection
2. For the tooltip of "Switch to Settings" added information about shortcuts
3. Shortcuts for the switching between tabs work from Settings Dialog now
4. Fixed the collapse button show after preference's change
1. Old mode, as it was always.
2. New mode, when Settings Tabs are hidden on the Plater. Use "cog" icon for the switching to the settings tabs
3. Dlg mode, when Settings Tabs are extracted to the Settings dialog. Use "cog" icon for Show or Focus the Settings Dialog
The "Collapse sidebar" toolbar appearance is set in the Preferences.
