…pplicationWillTerminate`" (#11564)

Reverts #11484

Fixes flutter/flutter#185407

flutter/flutter@3d0e822...5e4f169

2026-04-22 engine-flutter-autoroll@skia.org Roll Skia from f12c89580766 to 11640d1cbc5c (3 revisions) (flutter/flutter#185418)
2026-04-22 engine-flutter-autoroll@skia.org Roll Packages from 7c8e13e to 4a2091d (2 revisions) (flutter/flutter#185417)
2026-04-22 engine-flutter-autoroll@skia.org Roll Skia from f765937d0639 to f12c89580766 (1 revision) (flutter/flutter#185410)
2026-04-22 engine-flutter-autoroll@skia.org Roll Skia from 635b78342e75 to f765937d0639 (1 revision) (flutter/flutter#185406)
2026-04-22 engine-flutter-autoroll@skia.org Roll Skia from cda2af3f5c2e to 635b78342e75 (3 revisions) (flutter/flutter#185393)
2026-04-22 engine-flutter-autoroll@skia.org Roll Skia from 632a41e2baba to cda2af3f5c2e (3 revisions) (flutter/flutter#185390)
2026-04-22 engine-flutter-autoroll@skia.org Roll Skia from 019de7776cfa to 632a41e2baba (3 revisions) (flutter/flutter#185383)
2026-04-22 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Update libimobiledevice and dependencies (#181932)" (flutter/flutter#185385)
2026-04-22 rmolivares@renzo-olivares.dev Fix SelectableRegion crash when the selection starts in a scrollable child but does not select anything initially (flutter/flutter#184420)
2026-04-21 34871572+gmackall@users.noreply.github.com Fix timeout when `hybrid_android_views` fails `MotionEvent recomposition` (flutter/flutter#185003)
2026-04-21 srawlins@google.com [flutter] Remove dead check on null being in a set of non-nullables (flutter/flutter#184100)
2026-04-21 737941+loic-sharma@users.noreply.github.com Update the text input triage process to route to platform teams (flutter/flutter#185225)
2026-04-21 scheglov@google.com Compatibility bridge for analyzer 12 and 13. (flutter/flutter#185360)
2026-04-21 magder@google.com new_gallery_macos_impeller__transition_perf out of bringup (flutter/flutter#185355)
2026-04-21 engine-flutter-autoroll@skia.org Roll Skia from 21789d5e2fee to 019de7776cfa (9 revisions) (flutter/flutter#185365)
2026-04-21 magder@google.com Update libimobiledevice and dependencies (flutter/flutter#181932)
2026-04-21 magder@google.com platform_view_macos_impeller__start_up out of bringup (flutter/flutter#185354)
2026-04-21 magder@google.com complex_layout_scroll_perf_macos_impeller__timeline_summary out of bringup (flutter/flutter#185356)
2026-04-21 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from LPa7NLiXEZP2A7IwZ... to UdpQnaP5eSaDZd3-i... (flutter/flutter#185359)
2026-04-21 engine-flutter-autoroll@skia.org Roll Packages from 01c505f to 7c8e13e (4 revisions) (flutter/flutter#185361)
2026-04-21 737941+loic-sharma@users.noreply.github.com Improve the error if the tool cannot find the locally built engine (flutter/flutter#184546)
2026-04-21 engine-flutter-autoroll@skia.org Roll Skia from a234f0ed7245 to 21789d5e2fee (1 revision) (flutter/flutter#185349)
2026-04-21 victorsanniay@gmail.com Replace IndexedStack visibility children with _VisibilityScope + ExcludeFocus (flutter/flutter#184884)
2026-04-21 dacoharkes@google.com [data_assets] Try fix #184505 (flutter/flutter#185330)

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…#11401)

## Summary
This PR adds support for custom `BoxShadow` to the `OpenContainer` widget. This allows developers to specify `closedShadows` and `openShadows` to create more advanced and visually appealing transitions that go beyond the standard material `elevation`.
* Fixes a legacy layout overflow issue in `_ExampleSingleTile` by replacing the fixed height with responsive constraints, ensuring the example remains stable across different system font sizes and shadow distributions.

## Motivation
Currently, `OpenContainer` only supports a numeric `elevation` property, which limits modern UI designs requiring colored or multi-layered shadows. This PR also refactors the internal rendering hierarchy to move the shadow decoration outside the clipping surface, fixing a legacy issue where custom shadows were clipped by `Material`.

## Issues
Fixes flutter/flutter#62475

## Pre-Review Checklist