Add new test for preferences dialog

tests/reference/guiPreferences_novelwriter.conf

@@ -1,82 +0,0 @@
-[Meta]
-timestamp = 2023-12-29 14:09:13
-
-[Main]
-theme = default
-syntax = default_light
-font = Cantarell
-fontsize = 12
-localisation = en_GB
-hidevscroll = True
-hidehscroll = True
-lastnotes = 0x0
-lastpath = 
-
-[Sizes]
-mainwindow = 1200, 650
-welcome = 800, 500
-preferences = 713, 614
-mainpane = 300, 800
-viewpane = 500, 150
-outlinepane = 500, 150
-
-[Project]
-autosaveproject = 40
-autosavedoc = 20
-emphlabels = True
-backuppath = some/dir
-backuponclose = True
-askbeforebackup = True
-
-[Editor]
-textfont = None
-textsize = 13
-width = 700
-margin = 45
-tabwidth = 45
-focuswidth = 900
-hidefocusfooter = True
-justify = True
-autoselect = False
-autoreplace = False
-repsquotes = True
-repdquotes = True
-repdash = True
-repdots = True
-autoscroll = True
-autoscrollpos = 30
-scrollpastend = True
-fmtsquoteopen = ‘
-fmtsquoteclose = ’
-fmtdquoteopen = “
-fmtdquoteclose = ”
-fmtpadbefore = 
-fmtpadafter = 
-fmtpadthin = False
-spellcheck = en
-showtabsnspaces = True
-showlineendings = True
-showmultispaces = True
-wordcounttimer = 5.0
-incnoteswcount = True
-showfullpath = False
-highlightquotes = False
-allowopensquote = False
-allowopendquote = True
-highlightemph = False
-stopwhenidle = True
-useridletime = 300
-
-[State]
-showviewerpanel = True
-showedittoolbar = False
-useshortcodes = False
-viewcomments = True
-viewsynopsis = True
-searchcase = False
-searchword = False
-searchregex = False
-searchloop = False
-searchnextfile = False
-searchmatchcap = False
-