HTML switch control (#3342)

* HTML switch control

* Update

* Update features/switch-control.yml

* Update features/switch-control.yml

* Re-gen dist and add spec exception

---------

Co-authored-by: Patrick Brosset <patrickbrosset@gmail.com>

Author: ramiy

features/switch-control.yml

@@ -0,0 +1,8 @@
+name: '<input type="checkbox" switch>'
+description: The `switch` attribute, when present on an `<input type="checkbox">` HTML element, renders a switch control with an on and off state instead of a checkbox control.
+spec: https://github.com/whatwg/html/pull/9546
+group:
+  - forms
+  - html-elements
+compat_features:
+  - html.elements.input.switch

features/switch-control.yml.dist

@@ -0,0 +1,10 @@
+# Generated from: switch-control.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    safari: "17.4"
+    safari_ios: "17.4"
+compat_features:
+  - html.elements.input.switch

scripts/specs.ts

@@ -239,6 +239,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://wicg.github.io/turtledove/",
         "Discontinued spec allowed for discouraged feature."
+    ],
+    [
+        "https://github.com/whatwg/html/pull/9546",
+        "Allowed because the <input type=\"checkbox\" switch> feature is not yet in a formal spec. Remove this exception when a formal spec is available."
     ]
 ];