fix(gui): refresh swap info immediately

[louiss72]

Fixes #822.

This removes the debounce nested inside the swap progress updater. The previous structure throttled a debounced callback, so the first progress event still waited for the debounce delay and continuous swap progress could keep pushing the history refresh later. The updater now uses a leading/trailing throttle directly, so swap info and timelock refresh immediately on the first progress event while still coalescing rapid follow-up events.

Validation:

• npx eslint src/store/middleware/storeListener.ts
• git diff --check

Note: npm run tsc could not complete in this checkout because the generated src/models/tauriModel.ts binding is gitignored and typeshare is not installed locally (npm run gen-bindings fails with typeshare: command not found).

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[Einliterflasche]

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