fix: don't skip effect application for maximized windows

Previously, if shouldEnableEffect() returned false for a window on
startup, the effect wasn't applied to it, so it wasn't possible to
enable and disable it. This commit removes the extra check, so the
effect is applied properly, and then disabled with refreshRoundedCorners().

Fixes #54

src/manager/event_handlers.ts

@@ -36,13 +36,6 @@ import type {RoundedWindowActor} from '../utils/types.js';
 export function onAddEffect(actor: RoundedWindowActor) {
     logDebug(`opened: ${actor?.metaWindow.title}: ${actor}`);
 
-    const win = actor.metaWindow;
-
-    if (!shouldEnableEffect(win)) {
-        logDebug(`Skipping ${win.title}`);
-        return;
-    }
-
     unwrapActor(actor)?.add_effect_with_name(
         ROUNDED_CORNERS_EFFECT,
         new RoundedCornersEffect(),