patches: fix childFrameLastBuffer ivar init order

The Qnil initialization was in patch 0000 (Zoom) but the ivar
declaration is in patch 0008 (child frame tracking).  Moved the
init to patch 0008 so each patch compiles independently.

patches/0000-ns-integrate-with-macOS-Zoom-for-cursor-tracking.patch

@@ -1,4 +1,4 @@
-From 5637c7ec4d3511e42bca8e5b1cb628cc2d2200ad Mon Sep 17 00:00:00 2001
+From 82465943223138dfa1185467400e547c59e6e1be Mon Sep 17 00:00:00 2001
 From: Martin Sukany <martin@sukany.cz>
 Date: Sat, 28 Feb 2026 22:39:35 +0100
 Subject: [PATCH 1/9] ns: integrate with macOS Zoom for cursor tracking
@@ -38,8 +38,8 @@ window splits, switches (C-x o), and completion frameworks.
 ---
  etc/NEWS     |  11 ++
  src/nsterm.h |   6 +
- src/nsterm.m | 341 +++++++++++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 358 insertions(+)
+ src/nsterm.m | 338 +++++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 355 insertions(+)
 
 diff --git a/etc/NEWS b/etc/NEWS
 index ef36df5..80661a9 100644
@@ -81,7 +81,7 @@ index 7c1ee4c..ea6e7ba 100644
  }
  
 diff --git a/src/nsterm.m b/src/nsterm.m
-index 74e4ad5..f189c9e 100644
+index 74e4ad5..d624a76 100644
 --- a/src/nsterm.m
 +++ b/src/nsterm.m
 @@ -1081,6 +1081,270 @@ static NSRect constrain_frame_rect(NSRect frameRect, bool isFullscreen)
@@ -443,16 +443,6 @@ index 74e4ad5..f189c9e 100644
    ns_focus (f, NULL, 0);
  
    NSGraphicsContext *ctx = [NSGraphicsContext currentContext];
-@@ -8321,6 +8659,9 @@ - (instancetype) initFrameFromEmacs: (struct frame *)f
- 
-   windowClosing = NO;
-   processingCompose = NO;
-+#ifdef NS_IMPL_COCOA
-+  childFrameLastBuffer = Qnil;
-+#endif
-   scrollbarsNeedingUpdate = 0;
-   fs_state = FULLSCREEN_NONE;
-   fs_before_fs = next_maximized = -1;
 -- 
 2.43.0