useInflation hook fix

[bobo-k2]

Pull Request Summary

Fixed the hook because sometimes inflation data wasn't loaded.

Change log looks messy, but basically I removed singleton instance let inflationInstance: UseInflation | undefined = undefined;

Check list

• [ ] contains breaking changes
• [ ] adds new feature
• [x] modifies existing feature (bug fix or improvements)
• [ ] relies on other tasks
• [ ] documentation changes
• [ ] tested on mobile devices

[github-actions[bot]]

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[bobo-k2]

@impelcrypto resolved comments in https://github.com/AstarNetwork/astar-apps/pull/1296/commits/fcc9ae12580cc7fae49e4edfb8ff1e3a069f40e0