Grid and Text editors do not sync selected file

[JFoederer]

The Text editor does not follow file selection changes while the Grid editor is active.

Reproduction scenario:

• Open a test suite with at least 2 files (2 test suites or test suite + resource)
• Select file 1 and switch between grid and text editor to confirm they are the same file
• With the grid editor open, select file 2
• Switch to the Text editor
• Defect: The Text editor shows file 1, whereas it should have shown file 2

Using RIDE v2.0.9dev1 running on Python 3.11.0.