fetching mails from gmail successfully, adding them to listview, extended listview to use 100% width, added test gmail account
added function to display mails when clicking on an element in the listview in Mail Overview tab & added "sub tabs" in the mail overview tab (inbox, sent, deleted)
open new window when clicking on mail in mailoverview
sqlite database added, connect to sql, select from sql
remake of sql parts [in progress]