Add new NestedDeclaration keys (#2145)

Author: jamesnw

features/nesting.yml

@@ -3,3 +3,12 @@ description: CSS nesting allows for shorter selectors, easier reading, and more
 spec: https://drafts.csswg.org/css-nesting-1/
 group: css
 caniuse: css-nesting
+status:
+  compute_from: css.selectors.nesting
+compat_features:
+  - api.CSSStyleRule.cssRules
+  - api.CSSStyleRule.deleteRule
+  - api.CSSStyleRule.insertRule
+  - api.CSSNestedDeclarations
+  - api.CSSNestedDeclarations.style
+  - css.selectors.nesting

features/nesting.yml.dist

@@ -39,3 +39,12 @@ compat_features:
   #   safari: "17.2"
   #   safari_ios: "17.2"
   - css.selectors.nesting
+
+  # baseline: false
+  # support:
+  #   chrome: "130"
+  #   chrome_android: "130"
+  #   edge: "130"
+  #   firefox: "132"
+  - api.CSSNestedDeclarations
+  - api.CSSNestedDeclarations.style