feat!: drop modules, general refactor and cleanup

runtime/queries/foam/folds.scm

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+[
+  (comment)
+  (list)
+  (dict_core)
+] @fold
+
+(code
+  (code_body)* @fold)

runtime/queries/foam/highlights.scm

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+; Comments
+(comment) @comment @spell
+
+; Generic Key-value pairs and dictionary keywords
+(key_value
+  keyword: (identifier) @function)
+
+(dict
+  key: (identifier) @type)
+
+; Macros
+(macro
+  "$" @keyword.conditional
+  (prev_scope)* @keyword.conditional
+  (identifier)* @module)
+
+; Directives
+"#" @keyword.conditional
+
+(preproc_call
+  directive: (identifier)* @keyword.conditional
+  argument: (identifier)* @module)
+
+((preproc_call
+  argument: (identifier)* @module) @keyword.conditional
+  (#eq? @keyword.conditional "ifeq"))
+
+((preproc_call) @keyword.conditional
+  (#any-of? @keyword.conditional "else" "endif"))
+
+; Literals
+(number_literal) @number.float
+
+(string_literal) @string
+
+(escape_sequence) @string.escape
+
+(boolean) @boolean
+
+; Treat [m^2 s^-2] the same as if it was put in numbers format
+(dimensions
+  dimension: (identifier) @number.float)
+
+; Punctuation
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+  "#{"
+  "#}"
+  "|-"
+  "-|"
+  "<!--("
+  ")-->"
+  "$$"
+] @punctuation.bracket
+
+";" @punctuation.delimiter
+
+((identifier) @constant.builtin
+  (#any-of? @constant.builtin "uniform" "non-uniform" "and" "or"))

runtime/queries/foam/indents.scm

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+[
+  "{"
+  "}"
+] @indent.branch
+
+[
+  (dict)
+  (key_value)
+] @indent.begin
+
+(comment) @indent.ignore

runtime/queries/foam/injections.scm

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+((comment) @injection.content
+  (#set! injection.language "comment"))
+
+; Pass code blocks to Cpp highlighter
+(code
+  (code_body) @injection.content
+  (#set! injection.language "cpp"))
+
+; Pass identifiers to Go highlighter (Cheating I know)
+; ((identifier) @injection.content
+;  (#set! injection.language "lua")
+; Highlight regex syntax inside literal strings
+((string_literal) @injection.content
+  (#set! injection.language "regex"))
+
+; Highlight PyFoam syntax as Python statements
+(pyfoam_variable
+  code_body: (_) @injection.content
+  (#set! injection.language "python"))
+
+(pyfoam_expression
+  code_body: (_) @injection.content
+  (#set! injection.language "python"))

runtime/queries/foam/locals.scm

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+(dict) @local.scope
+
+(dict
+  key: (_) @local.definition.type)
+
+(key_value
+  keyword: (_) @local.definition.parameter)
+
+(key_value
+  value: (macro
+    (identifier)*)* @local.reference)