feat!: drop modules, general refactor and cleanup

runtime/queries/dart/indents.scm

@@ -0,0 +1,49 @@
+[
+  (class_body)
+  (function_body)
+  (function_expression_body)
+  (declaration
+    (initializers))
+  (switch_block)
+  (formal_parameter_list)
+  (formal_parameter)
+  (list_literal)
+  (return_statement)
+  (arguments)
+  (try_statement)
+] @indent.begin
+
+(switch_block
+  (_) @indent.begin
+  (#set! indent.immediate 1)
+  (#set! indent.start_at_same_line 1))
+
+[
+  (switch_statement_case)
+  (switch_statement_default)
+] @indent.branch
+
+[
+  "("
+  ")"
+  "{"
+  "}"
+  "["
+  "]"
+] @indent.branch
+
+"}" @indent.end
+
+(return_statement
+  ";" @indent.end)
+
+(break_statement
+  ";" @indent.end)
+
+(comment) @indent.ignore
+
+; dedenting the else block is painfully slow; replace with simpler strategy
+; (if_statement) @indent.begin
+; (if_statement
+;   (block) @indent.branch)
+(if_statement) @indent.auto