feat(highlight): migrate to tree-house with Helix queries

Replace tree-sitter-highlight dep with tree-house crate from Helix
editor. Add ropey dependency required by tree-house.

Reorganize query files from Helix's runtime/queries/ for all 14
supported languages:
- bash, c, css, go, html, javascript, json, markdown, nix, python,
  rust, toml, typescript, yaml
- Include ecma, _javascript, _typescript base dirs for JS/TS inheritance
- Copy highlights.scm, injections.scm, locals.scm where available

This commit establishes the foundation; highlight.rs implementation
will follow in subsequent commits.

queries/go/highlights.scm

@@ -0,0 +1,236 @@
+
+; Identifiers
+
+(field_identifier) @variable.other.member
+
+(identifier) @variable
+
+(package_identifier) @namespace
+
+(const_spec
+  name: (identifier) @constant)
+
+(type_spec
+  name: (type_identifier) @constructor)
+
+(keyed_element . (literal_element (identifier) @variable.other.member))
+(field_declaration
+  name: (field_identifier) @variable.other.member)
+
+(parameter_declaration (identifier) @variable.parameter)
+(variadic_parameter_declaration (identifier) @variable.parameter)
+
+(label_name) @label
+
+(const_spec
+  name: (identifier) @constant)
+
+; Function calls
+
+(call_expression
+  function: (identifier) @function)
+
+(call_expression
+  function: (selector_expression
+    field: (field_identifier) @function.method))
+
+(call_expression
+  function: (identifier) @function.builtin
+  (#match? @function.builtin "^(append|cap|close|complex|copy|delete|imag|len|make|new|panic|print|println|real|recover|min|max|clear)$"))
+
+; Types
+
+(type_identifier) @type
+
+(type_parameter_list
+  (type_parameter_declaration
+    name: (identifier) @type.parameter))
+
+((type_identifier) @type.builtin
+  (#match? @type.builtin "^(any|bool|byte|comparable|complex128|complex64|error|float32|float64|int|int16|int32|int64|int8|rune|string|uint|uint16|uint32|uint64|uint8|uintptr)$"))
+
+; Function definitions
+
+(function_declaration
+  name: (identifier) @function)
+
+(method_declaration
+  name: (field_identifier) @function.method)
+
+(method_elem
+  name: (field_identifier) @function.method)
+
+; Operators
+
+[
+  "--"
+  "-"
+  "-="
+  ":="
+  "!"
+  "!="
+  "..."
+  "*"
+  "*"
+  "*="
+  "/"
+  "/="
+  "&"
+  "&&"
+  "&="
+  "%"
+  "%="
+  "^"
+  "^="
+  "+"
+  "++"
+  "+="
+  "<-"
+  "<"
+  "<<"
+  "<<="
+  "<="
+  "="
+  "=="
+  ">"
+  ">="
+  ">>"
+  ">>="
+  "|"
+  "|="
+  "||"
+  "&^"
+  "&^="
+  "~"
+] @operator
+
+; Keywords
+
+[
+  "default"
+  "type"
+] @keyword
+
+[
+  "defer"
+  "go"
+  "goto"
+] @keyword.control
+
+[
+  "if"
+  "else"
+  "switch"
+  "select"
+  "case"
+] @keyword.control.conditional
+
+[
+  "for"
+  "range"
+] @keyword.control.repeat
+
+[
+  "import"
+  "package"
+] @keyword.control.import
+
+[
+  "return"
+  "continue"
+  "break"
+  "fallthrough"
+] @keyword.control.return
+
+[
+  "func"
+] @keyword.function
+
+[
+  "var"
+  "chan"
+  "interface"
+  "map"
+  "struct"
+] @keyword.storage.type
+
+[
+  "const"
+] @keyword.storage.modifier
+
+; Delimiters
+
+[
+  ":"
+  "."
+  ","
+  ";"
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+] @punctuation.bracket
+
+; Literals
+
+[
+  (interpreted_string_literal)
+  (raw_string_literal)
+] @string
+
+(rune_literal) @constant.character
+
+(escape_sequence) @constant.character.escape
+
+[
+  (int_literal)
+] @constant.numeric.integer
+
+[
+  (float_literal)
+  (imaginary_literal)
+] @constant.numeric.float
+
+[
+  (true)
+  (false)
+] @constant.builtin.boolean
+
+[
+  (nil)
+  (iota)
+] @constant.builtin
+
+; Comments
+
+(comment) @comment
+
+; Doc Comments
+(source_file
+  .
+  (comment)+ @comment.block.documentation)
+
+(source_file
+  (comment)+ @comment.block.documentation
+  .
+  (const_declaration))
+
+(source_file
+  (comment)+ @comment.block.documentation
+  .
+  (function_declaration))
+
+(source_file
+  (comment)+ @comment.block.documentation
+  .
+  (type_declaration))
+
+(source_file
+  (comment)+ @comment.block.documentation
+  .
+  (var_declaration))