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>

extensions/test-extension/languages/gleam/config.toml

@@ -0,0 +1,12 @@
+name = "Gleam"
+grammar = "gleam"
+path_suffixes = ["gleam"]
+line_comments = ["// ", "/// "]
+autoclose_before = ";:.,=}])>"
+brackets = [
+    { start = "{", end = "}", close = true, newline = true },
+    { start = "[", end = "]", close = true, newline = true },
+    { start = "(", end = ")", close = true, newline = true },
+    { start = "\"", end = "\"", close = true, newline = false, not_in = ["string", "comment"] },
+]
+tab_size = 2

extensions/test-extension/languages/gleam/highlights.scm

@@ -0,0 +1,162 @@
+; Comments
+(module_comment) @comment
+
+(statement_comment) @comment
+
+(comment) @comment
+
+; Constants
+(constant
+  name: (identifier) @constant)
+
+; Variables
+(identifier) @variable
+
+(discard) @comment.unused
+
+; Modules
+(module) @module
+
+(import
+  alias: (identifier) @module)
+
+(remote_type_identifier
+  module: (identifier) @module)
+
+(remote_constructor_name
+  module: (identifier) @module)
+
+((field_access
+  record: (identifier) @module
+  field: (label) @function)
+  (#is-not? local))
+
+; Functions
+(unqualified_import
+  (identifier) @function)
+
+(unqualified_import
+  "type"
+  (type_identifier) @type)
+
+(unqualified_import
+  (type_identifier) @constructor)
+
+(function
+  name: (identifier) @function)
+
+(external_function
+  name: (identifier) @function)
+
+(function_parameter
+  name: (identifier) @variable.parameter)
+
+((function_call
+  function: (identifier) @function)
+  (#is-not? local))
+
+((binary_expression
+  operator: "|>"
+  right: (identifier) @function)
+  (#is-not? local))
+
+; "Properties"
+; Assumed to be intended to refer to a name for a field; something that comes
+; before ":" or after "."
+; e.g. record field names, tuple indices, names for named arguments, etc
+(label) @property
+
+(tuple_access
+  index: (integer) @property)
+
+; Attributes
+(attribute
+  "@" @attribute
+  name: (identifier) @attribute)
+
+(attribute_value
+  (identifier) @constant)
+
+; Type names
+(remote_type_identifier) @type
+
+(type_identifier) @type
+
+; Data constructors
+(constructor_name) @constructor
+
+; Literals
+(string) @string
+
+((escape_sequence) @warning
+  ; Deprecated in v0.33.0-rc2:
+  (#eq? @warning "\\e"))
+
+(escape_sequence) @string.escape
+
+(bit_string_segment_option) @function.builtin
+
+(integer) @number
+
+(float) @number
+
+; Reserved identifiers
+; TODO: when tree-sitter supports `#any-of?` in the Rust bindings,
+; refactor this to use `#any-of?` rather than `#match?`
+((identifier) @warning
+  (#match? @warning "^(auto|delegate|derive|else|implement|macro|test|echo)$"))
+
+; Keywords
+[
+  (visibility_modifier) ; "pub"
+  (opacity_modifier) ; "opaque"
+  "as"
+  "assert"
+  "case"
+  "const"
+  ; DEPRECATED: 'external' was removed in v0.30.
+  "external"
+  "fn"
+  "if"
+  "import"
+  "let"
+  "panic"
+  "todo"
+  "type"
+  "use"
+] @keyword
+
+; Operators
+(binary_expression
+  operator: _ @operator)
+
+(boolean_negation
+  "!" @operator)
+
+(integer_negation
+  "-" @operator)
+
+; Punctuation
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+  "<<"
+  ">>"
+] @punctuation.bracket
+
+[
+  "."
+  ","
+  ; Controversial -- maybe some are operators?
+  ":"
+  "#"
+  "="
+  "->"
+  ".."
+  "-"
+  "<-"
+] @punctuation.delimiter

extensions/test-extension/languages/gleam/indents.scm

@@ -0,0 +1,11 @@
+(_
+  "["
+  "]" @end) @indent
+
+(_
+  "{"
+  "}" @end) @indent
+
+(_
+  "("
+  ")" @end) @indent

extensions/test-extension/languages/gleam/outline.scm

@@ -0,0 +1,31 @@
+(external_type
+  (visibility_modifier)? @context
+  "type" @context
+  (type_name) @name) @item
+
+(type_definition
+  (visibility_modifier)? @context
+  (opacity_modifier)? @context
+  "type" @context
+  (type_name) @name) @item
+
+(data_constructor
+  (constructor_name) @name) @item
+
+(data_constructor_argument
+  (label) @name) @item
+
+(type_alias
+  (visibility_modifier)? @context
+  "type" @context
+  (type_name) @name) @item
+
+(function
+  (visibility_modifier)? @context
+  "fn" @context
+  name: (_) @name) @item
+
+(constant
+  (visibility_modifier)? @context
+  "const" @context
+  name: (_) @name) @item