a note regarding keepAbove/Below for fullscreen

KWin currently keeps fullscreen windows on the top, regardless of
keepAbove/Below settings.

I initially wanted to allow other tiled windows to appear when user switches
out of fullscreen windows, but, since KWin ignores those values, it's
impossible to show other windows over fullscreen windows.

Author: esjeon

src/engine.ts

@@ -87,6 +87,7 @@ class TilingEngine {
 
             visibles.forEach((tile) => {
                 if (this.driver.isClientFullScreen(tile.client)) {
+                    /* NOTE: kwin keeps fullscreen windows on the top anyway. */
                     tile.client.keepAbove = false;
                     tile.client.keepBelow = false;
                 } else if (tile.floating) {