### WHY are these changes introduced?

Part of https://github.com/Shopify/polaris-internal/issues/1379
Follow up to #11826, this change
is still behind a feature flag.

* Moving scrollbar buffer from main to content in `Frame` since we moved
the scrollbar to just the content
* updating `scroll` -> `auto` ensures the scrollbar doesn't show up when
there isn't any scroll.

## Tophat


[Spin](https://admin.web.web-npdr.sophie-schneider.us.spin.dev/store/shop1/products?selectedView=all)

* turn on scrollbars always show in settings, shorten the window so the
scrollbar hides and shows and make sure there isn't a layout shift

![Screen Recording 2024-04-17 at 9 56
36 AM](https://github.com/Shopify/polaris/assets/20652326/9933ab0c-af83-46a4-b60b-d5626f785680)

- [x] Chrome, Firefox, Safari
- [x] Mobile

This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @shopify/[email protected]

### Minor Changes

- [#11883](#11883)
[`a60d8aa4f`](a60d8aa)
Thanks [@chloerice](https://github.com/chloerice)! - Added a
`disclosureZIndexOverride` prop to `Filters`, `IndexFilters`, and `Tabs`
that is passed to `Popover` and `Tooltip` when provided


- [#11826](#11826)
[`a7fd7ab5d`](a7fd7ab)
Thanks [@sophschneider](https://github.com/sophschneider)! - Added
`contextualSaveBarVisible` and `contextualSaveBarProps` to `Frame`
context

### Patch Changes

- [#11842](#11842)
[`2a93578af`](2a93578)
Thanks [@kyledurand](https://github.com/kyledurand)! - Fixed layout
shift for option lists within popovers


- [#11846](#11846)
[`ce6353b97`](ce6353b)
Thanks [@sophschneider](https://github.com/sophschneider)! - Restyled
Frame content behind dynamicTopBarAndReframe feature flag


- [#11872](#11872)
[`696bcb725`](696bcb7)
Thanks [@mattkubej](https://github.com/mattkubej)! - globally remove
link tap highlighting


- [#11874](#11874)
[`744036706`](7440367)
Thanks [@laurkim](https://github.com/laurkim)! - Added support for ref
to `Image` to handle image load with `EmptyState`


- [#11881](#11881)
[`c96ff56a0`](c96ff56)
Thanks [@sophschneider](https://github.com/sophschneider)! - Fixed Frame
feature override class to get proper max-width for main content.


- [#11885](#11885)
[`af80d3a82`](af80d3a)
Thanks [@craigcolesshopify](https://github.com/craigcolesshopify)! -
[indexTable] Fixed over scroll gap on `IndexTable` for sortable last
headings with `alignment="end"`


- [#11889](#11889)
[`374030428`](3740304)
Thanks [@chloerice](https://github.com/chloerice)! - Fixed `TextField`
zoom on focus due to font-size below 16px


- [#11900](#11900)
[`215b79271`](215b792)
Thanks [@sophschneider](https://github.com/sophschneider)! - Fixed
`Frame` scrollbar safe area to accommodate sidebar


- [#11842](#11842)
[`2a93578af`](2a93578)
Thanks [@kyledurand](https://github.com/kyledurand)! - Changed selected
icon position in Listbox and OptionList


- [#11891](#11891)
[`c84d4e875`](c84d4e8)
Thanks [@sophschneider](https://github.com/sophschneider)! - Moved
`Frame` scrollbar from main to content and set overflow-y from scroll to
auto behind a feature flag

## [email protected]

### Patch Changes

- Updated dependencies
\[[`a60d8aa4f`](a60d8aa),
[`2a93578af`](2a93578),
[`ce6353b97`](ce6353b),
[`696bcb725`](696bcb7),
[`744036706`](7440367),
[`c96ff56a0`](c96ff56),
[`af80d3a82`](af80d3a),
[`374030428`](3740304),
[`215b79271`](215b792),
[`a7fd7ab5d`](a7fd7ab),
[`2a93578af`](2a93578),
[`c84d4e875`](c84d4e8)]:
    -   @shopify/[email protected]

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

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### WHY are these changes introduced?

Part of https://github.com/Shopify/polaris-internal/issues/1471

### WHAT is this pull request doing?

* Adds `contextualSaveBarVisible` and `contextualSaveBarProps` to
`Frame` context
* Does not render `ContextualSaveBar` UI when `dynamicTopBarAndReframe`
feature flag is on

This is to enable us to create our own contextual save bar styles in web
as a child of the new `TopBar` while still using the frame context
architecture to manage hiding and showing the bar.

### How to 🎩

1. Make sure contextual save bar with the beta flag off is unaffected
(spin)
2. Make sure contextual save bar with beta flag on doesn't show up
(spin)

### 🎩 checklist

- [x] Tested a
[snapshot](https://github.com/Shopify/polaris/blob/main/documentation/Releasing.md#-snapshot-releases)
- [x] Tested on
[mobile](https://github.com/Shopify/polaris/blob/main/documentation/Tophatting.md#cross-browser-testing)
- [x] Tested on [multiple
browsers](https://help.shopify.com/en/manual/shopify-admin/supported-browsers)