Add CSSImportRule.supportsText key to @supports (#2095)

Author: jamesnw

features/supports.yml

@@ -6,8 +6,7 @@ group: css
 status:
   compute_from: css.at-rules.supports
 compat_features:
-  # TODO: see discussion on https://github.com/web-platform-dx/web-features/pull/1353#discussion_r1673871428
-  # - api.CSSImportRule.supportsText
+  - api.CSSImportRule.supportsText
   - api.CSSSupportsRule
   - css.at-rules.import.supports
   - css.at-rules.supports

features/supports.yml.dist

@@ -55,6 +55,18 @@ compat_features:
   - css.at-rules.supports.font-format
   - css.at-rules.supports.font-tech
 
+  # baseline: low
+  # baseline_low_date: 2024-05-13
+  # support:
+  #   chrome: "121"
+  #   chrome_android: "121"
+  #   edge: "121"
+  #   firefox: "114"
+  #   firefox_android: "114"
+  #   safari: "17.5"
+  #   safari_ios: "17.5"
+  - api.CSSImportRule.supportsText
+
   # baseline: false
   # support:
   #   chrome: "122"