refactor(ui): InsetHeaderScrollView, shared tab swipes

[pwltr]

Description

• add a reusable InsetHeaderScrollView with measured top safeAreaInset header + scroll content minHeight to fill the viewport below. To be used on scrollable screens with headers like AllActivity, MainSettings, ShopDiscover.
• add swipeSegmentedTabs for AllActivity, MainSettings, and ShopDiscover segmented controls (horizontal swipe to change tabs).
• refactor Card views
• fix "lightbulb" figure image

Screenshot / Video

Simulator.Screen.Recording.-.iPhone.17.-.2026-05-04.at.23.44.27.mov

QA Notes

Make sure changed screens look polished and suggestion/shop cards still work as expected.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Point lightbulb image set to the actual asset file

This image set declares "filename": "lightbulb.pdf", but the commit only adds lightbulb.png in that folder, so the catalog entry points to a non-existent file. As a result, Image("lightbulb") (for example in profile hint UIs) can render as missing at runtime or fail asset validation in build tooling. Update the filename to lightbulb.png (or add the referenced PDF) so the asset resolves correctly.

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