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Add expanded and linearMainAxisAlignment options to ButtonGroupM3E for improved layout control

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Emily Pauli 2025-11-12 14:17:00 +01:00
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packages/button_group_m3e/CHANGELOG.md
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## 0.3.1
- New: `expanded` and `linearMainAxisAlignment` options for non-wrap layouts. When `expanded` is true, the group uses `MainAxisSize.max` and aligns items per `linearMainAxisAlignment` (or mapped from `alignment`). This enables internal center/right alignment without extra wrappers.
- Fix: Connected + menu overflow now consistently inserts a 2px gap before the overflow trigger (when `showDividers=false`) and uses a stricter width-fitting algorithm with a small epsilon to eliminate minor RenderFlex overflows.
- UX: Dropdown overflow popup is anchored bottom-right of the overflow button, has intrinsic width to fit its buttons, and aligns its internal buttons to the right.
## 0.3.0
- Breaking: Removed legacy `children` parameter. Use `actions: List<ButtonGroupM3EAction>` instead.
- Breaking: Renamed `groupSelection` API to `selection` for clarity.