Jupyter notebook cell highlighting only works on mouse hover, not using keyboard

[glokta1]

See recording:
https://github.com/robb0wen/synthwave-vscode/assets/71697384/42aafb97-8da0-4ff2-b31d-03e4e3cf1606

Also, I'd propose also changing the highlight color to something more prominent -- I always need a second look to see which cell is in focus.

[glokta1]

Since the project is unmaintained, I decided to tweak the settings myself to resemble "expected behavior":

"workbench.colorCustomizations": {
        "[SynthWave '84]": {
            "notebook.focusedCellBorder": "#880088",
            "notebook.focusedEditorBorder": "#880088",
        }
}

I've set it to the same color as the bottom border of the active tab. You can change it to whatever you prefer

Screen.Recording.2024-01-09.at.3.11.57.PM.mov