refactor: set currentPage / currentPerPage only if different from current value

[dated]

Summary

Follow up to #1611.

When the per page count is changed vue-good-table emits the on-per-page-change event twice, which in turn result in two api calls to be made calls to the loadTransactions method. By checking if the current value is equal to the emitted value first only one request will be done the above method will be called only once.

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

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[dav1app]

This works better.

[dated]

Relevant issue in the vue-good-table repo: xaksis/vue-good-table#654

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