chore(overlay): fix typo in overlay-ref comment (#17345)

Author: NothingEverHappens

src/cdk/overlay/overlay-ref.ts

@@ -202,7 +202,7 @@ export class OverlayRef implements PortalOutlet, OverlayReference {
     // Remove this overlay from keyboard dispatcher tracking.
     this._keyboardDispatcher.remove(this);
 
-    // Keeping the host element in DOM the can cause scroll jank, because it still gets
+    // Keeping the host element in the DOM can cause scroll jank, because it still gets
     // rendered, even though it's transparent and unclickable which is why we remove it.
     this._detachContentWhenStable();