This gives a small but nice indication that the switcher window list items are clickable. :^)
If the window switcher is up when a window is made frontmost (usually by clicking on it), the window will now become the selected window in the switcher. This still has a slight feeling of "hmm" but is definitely better than what we had before.
You can now switch between windows using your mouse to click them in the window switcher. :^)
Also remove the leading WS from names and filenames.
