Add popover=hint feature (#2680)

Closes #2250

Co-authored-by: Daniel D. Beck <[email protected]>

Author: mfreed7

features/popover-hint.yml

@@ -0,0 +1,7 @@
+name: 'popover="hint"'
+description: The `popover="hint"` global HTML attribute creates a popover that is subordinate to popovers with a `popover="auto"` attribute. You can use this to create tooltips that don't dismiss `auto` popovers.
+spec: https://html.spec.whatwg.org/multipage/popover.html#attr-popover-hint
+group: html
+compat_features:
+  - api.HTMLElement.popover.hint
+  - html.global_attributes.popover.hint

features/popover-hint.yml.dist

@@ -0,0 +1,12 @@
+# Generated from: popover-hint.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "133"
+    chrome_android: "133"
+    edge: "133"
+compat_features:
+  - api.HTMLElement.popover.hint
+  - html.global_attributes.popover.hint