[BLUEJ-655] Change file choosers to FX if needed
As well as the Swing dialogs to FX, we may need to change the file choosers to FX as well; investigate on Linux if this is needed to avoid the focus bug.
Issue metadata
- Issue type: Sub-task
- Priority: Medium
- Parent issue: [BLUEJ-622] Add Stride support to BlueJ
- Fix versions: 4.0.0preview