patches: move lastCursorRect ivar from patch 1 to patch 5

The ivar was declared in patch 0001 but first used in patch 0005,
creating dead code in intermediate commits 0001-0004.  Now each
commit only introduces declarations that are immediately used.

patches/0008-ns-announce-child-frame-completion-candidates-for-Vo.patch

@@ -1,4 +1,4 @@
-From 058cc9aad5c34796206749844df28acc9e09f0eb Mon Sep 17 00:00:00 2001
+From c76af5456ed23045749a221bd42896e8f8e8601a Mon Sep 17 00:00:00 2001
 From: Martin Sukany <martin@sukany.cz>
 Date: Sat, 28 Feb 2026 16:01:29 +0100
 Subject: [PATCH 8/8] ns: announce child frame completion candidates for