feat: expansion local storage

[gbarkhatov]

• adds local storage utilities for expansions

Closes #1531

[Copilot]

Pull Request Overview

Adds local storage utilities for tracking expansion broadcast states, enabling the application to persist and manage expansion status across user sessions.

• Implements local storage functions to mark, retrieve, and clean up expansion broadcast states
• Integrates broadcast state tracking into the staking expansion service workflow
• Updates expansion visibility service to use the new broadcast confirmation status

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/ui/common/utils/local_storage/expansionStorage.ts	New utility module providing functions to manage expansion broadcast states in localStorage
src/ui/common/hooks/services/useStakingExpansionService.ts	Integrates expansion broadcast tracking after successful transaction broadcast
src/ui/common/hooks/services/useExpansionVisibilityService.ts	Updates comments to reflect the new broadcast confirmation status used for expansion visibility

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