fix(#2562): Prevent transaction deduplication for imported transactions (#2770)

* fix(#2562): Prevent transaction deduplication for imported transactions

* chore(): eslint fixes

* chore(): Add release note file

* fix(#2562): Allow transaction deduplication if transaction being imported is null

* chore: Rename release note, add strazto as author

* test(loot-core): Add test case for new logic

* docs(release-notes.loot-core): Add pmoon00 as author

* test(loot-core): Update test case to not be affected by unrelated bug

* test(loot-core): fix linter

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Co-authored-by: Mohamed El Mahdali <mohamed.elmahdali.developer@gmail.com>
Co-authored-by: Matiss Janis Aboltins <matiss@mja.lv>