patches: fix all non-ASCII, PATCH numbering, block_input order, pkg names

- All 9 patches: convert em-dash, arrow, ellipsis, mu to ASCII equivalents
  (required for strict git am on Linux; GNU coding standards)
- 0000: Subject [PATCH 0/8] -> [PATCH] (standalone Zoom series)
- 0001: fix block_input() ordering: call block_input before
  record_unwind_protect_void(unblock_input) per standard pattern
- 0001/0005: shorten decorator separator comment lines to <80 chars
- 0007: genericize overlay completion framework name in commit message
- 0008: genericize child-frame completion framework name in commit message
- README.txt: fix stale 'default t' to 'default nil' with auto-detection note
- TESTING.txt: fix stale 'defaults to t' to 'defaults to nil'

patches/0004-ns-add-interactive-span-elements-for-Tab-navigation.patch

@@ -21,7 +21,7 @@ diff --git a/src/nsterm.m b/src/nsterm.m
 index 9e0e317237..8aa5b6ac1b 100644
 --- a/src/nsterm.m
 +++ b/src/nsterm.m
-@@ -9349,6 +9349,298 @@ - (NSRect)accessibilityFrame
+@@ -9346,6 +9346,298 @@ - (NSRect)accessibilityFrame
  
  @end