fix: remove redundant Comment member from CSSSyntaxElement union (eslint#119)

* fix(types): add missing `Comment` type import

* chore: explicitly specify the `lib` TypeScript compiler option

- Remove the default inherited type definitions from the project by aligning `lib` with `target`, making the type environment stricter, and verifying that the previous fix resolves the intended issue by surfacing related errors via the type tests. See: https://www.typescriptlang.org/tsconfig/#lib.

* refactor: remove `Comment` from the `CSSSyntaxElement` union

- The `CssNodePlain` type is a union that includes `Comment` as a member, making it redundant in the `CSSSyntaxElement` union.

Author: louis-young-slice

src/types.ts

@@ -31,7 +31,7 @@ type WithExit<RuleVisitorType extends RuleVisitor> = {
 /**
  * A CSS syntax element, including nodes and comments.
  */
-export type CSSSyntaxElement = CssNodePlain | Comment;
+export type CSSSyntaxElement = CssNodePlain;
 
 type CSSNodeVisitor = {
 	[Type in CssNodeNames]: (

tsconfig.json

@@ -7,6 +7,7 @@
     "checkJs": true,
     "outDir": "dist/esm",
     "target": "ES2022",
+    "lib": ["ES2022"],
     "moduleResolution": "NodeNext",
     "module": "NodeNext"
   }