patches: pre-upstream review fixes (all blockers + nits)

- 0000: fix double blank line before #ifdef, remove extra block scope braces
- 0001: spell out 'AT' -> 'assistive technology'; fix stub comment
- 0002: revert unrelated em-dash->triple-dash in windowWillResize strings
- 0003-0005: renumber from [PATCH N/9] to [PATCH N/8]
- 0006: remove 'Block-style cursors' from Known Limitations; fix @xref note
- 0007: remove spurious ns_ax_face_is_selected ChangeLog entry
- 0008: refactor goto skip_overlay_scan to nested if; remove spurious blank line
- All: renumber series (0000=[PATCH 1/1], 0001-0008=[PATCH 1/8]-[PATCH 8/8])

patches/0003-ns-add-AX-notifications-and-mode-line-element.patch

@@ -1,7 +1,7 @@
 From 11aa323081fd9117381413b6d8e477659d6afc29 Mon Sep 17 00:00:00 2001
 From: Martin Sukany <martin@sukany.cz>
 Date: Wed, 4 Mar 2026 15:23:55 +0100
-Subject: [PATCH 4/9] ns: add AX notifications and mode-line element
+Subject: [PATCH 3/8] ns: add AX notifications and mode-line element
 
 Add VoiceOver notification dispatch and mode-line readout.