fix(web): retain keyboard focus when moving chart cards

Belongs-in: #135 feat/redesign

Restore focus after keyed DOM reordering and select the enabled move action at each list boundary. Verify repeated keyboard movement, persisted order and resizing at phone and desktop widths.
1fe1fe79d8flamboh committed on 10/6/2026, 7:42:10 PMparent1982a7d

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