logiguard fork: GPUI xdg-activation keyboard-focus serial fix

Single-commit orphan branch: full zed-industries/zed @ 8c74db0 source tree
with a 3-file patch applied (no upstream history).

Patch (crates/gpui_linux/src/linux/wayland/):
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

Mutter honors window activation only when the token carries the keyboard-
focus serial from wl_keyboard.enter; GPUI used a stale mouse-press serial.
See docs/tray-window-focus-wayland.md in logiguard.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/grammars/src/gitcommit/config.toml

@@ -0,0 +1,24 @@
+name = "Git Commit"
+grammar = "gitcommit"
+path_suffixes = [
+  "TAG_EDITMSG",
+  "MERGE_MSG",
+  "COMMIT_EDITMSG",
+  "NOTES_EDITMSG",
+  "EDIT_DESCRIPTION",
+]
+line_comments = ["# "]
+brackets = [
+  { start = "(", end = ")", close = true, newline = false },
+  { start = "`", end = "`", close = true, newline = false },
+  { start = "\"", end = "\"", close = true, newline = false },
+  { start = "'", end = "'", close = true, newline = false },
+  { start = "{", end = "}", close = true, newline = false },
+  { start = "[", end = "]", close = true, newline = false },
+]
+rewrap_prefixes = [
+    "[-*+]\\s+",
+    "\\d+\\.\\s+",
+    ">\\s*",
+    "[-*+]\\s+\\[[\\sx]\\]\\s+"
+]

crates/grammars/src/gitcommit/highlights.scm

@@ -0,0 +1,36 @@
+(subject) @markup.heading
+
+(path) @string.special.path
+
+(branch) @string.special.symbol
+
+(commit) @constant
+
+(item) @markup.link.url
+
+(header) @tag
+
+(comment) @comment
+
+(change
+  kind: "new file" @diff.plus)
+
+(change
+  kind: "deleted" @diff.minus)
+
+(change
+  kind: "modified" @diff.delta)
+
+(change
+  kind: "renamed" @diff.delta.moved)
+
+(trailer
+  key: (trailer_key) @variable.other.member
+  value: (trailer_value) @string)
+
+[
+  ":"
+  "="
+  "->"
+  (scissors)
+] @punctuation.delimiter

crates/grammars/src/gitcommit/injections.scm

@@ -0,0 +1,8 @@
+((comment) @content
+  (#set! injection.language "comment"))
+
+((scissors) @content
+  (#set! "language" "diff"))
+
+((rebase_command) @content
+  (#set! "language" "git_rebase"))