CodeRabbit Generated Unit Tests: Add generated unit tests

[coderabbitai]

Unit test generation was requested by @romanz.

• chore(core): add {0} / {1} bytes to translation strings #6784 (comment)

The following files were modified:

• core/tests/test_apps.ethereum.helpers.py
• core/tests/test_trezor.ui.layouts.confirm_blob_prefix.py

[coderabbitai]

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[github-actions]

en main(all)

model	device_test	click_test	persistence_test
T2T1	test(all) main(all)	test(all) main(all)	test(all) main(all)
T3B1	test(all) main(all)	test(all) main(all)	test(all) main(all)
T3T1	test(all) main(all)	test(all) main(all)	test(all) main(all)
T3W1	test(all) main(all)	test(all) main(all)	test(all) main(all)

Latest CI run: 24928983810