CATROID-1130 Refactor TermsOfUseDialogTest and AboutDialogTest to kotlin

[khushal1707]

Ticket: https://jira.catrob.at/browse/CATROID-1130
Refactored test TermsOfUseDialogTest, AboutDialogTest to kotlin corresponding to TermsOfUseDialogFragment, AboutDialogFragment (Reference PR: #4209)

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[gPathpp]

LGTM 👍

[blindguardian50]

Thanks!