feat(web): update-routes-paths-to-kebab-case

[kemuru]

PR-Codex overview

This PR updates route paths and navigation buttons in various components for consistency and clarity.

Detailed summary

• Updated route paths in multiple files for consistency (/new-transaction instead of /newTransaction).
• Adjusted navigation buttons to match the new route paths.
• Fixed import paths in PaymentReleased component.
• Updated context types to use undefined instead of null.

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[alcercu]

lgtm