Release 5.0.2

• support for extended writing of vala applications
  Note that sealed classes causes issues, so generally it's not usable yet
• Move Node (drag with shift pressed)
• Changing property key now triggers save/language server
• Fixed sending wrong 'save' to language-server (caused LS to crash)
• Fixed Gtkview - uses toSource(), rather than file.get_contents()
• Fixed updating of errors (should only update changed error mark or tree item))
• Errors now shown on widget tree / node properties / and node edit as selected
• Error highlighting now on character location of errors, along with marks
• roojspacker dependancy removed for now (too slow to work currently)
• add other property - use menubutton and tidy up pulldown so it looks like a menu.
• switch window now uses libadwadi panel
• switch window search shows full file list in panel - so you can jump to file
• control-o tiggers file open, after file serach up/down arrows select file, and enter / shift enter will open.
• undo and redo buttons - now work
• improved performance on node generation, and language server call performance (less uneccessary calls)
• use find path for searching for vala-language-server (and add it as a dependancy!)
• support for Adw in rendering of previews (limited though)
• remove readonly properties from palete
• added icons from glade (and made the resources)
• added resource support to meson creation
• added gdb / gnome-terminal / meson / ninja to control file
• removed gda dependancy ( not used at present)
• flatpack might work...