added a check to check the deletedAt column before showing or updatin…

[Bikilaketema]

This pull request includes changes to the AccountService class in src/modules/admin/account/account.service.ts to enhance the handling of account retrieval and updates by adding checks for soft-deleted accounts and throwing appropriate errors when accounts are not found.

Enhancements to account handling:

• Added a check for deletedAt being null when finding multiple accounts in the findAll method, and introduced an error throw if no accounts are found.
• Modified the findOne method to include a check for deletedAt being null and to throw an error if the account is not found.
• Updated the update method to include a check for deletedAt being null before attempting to update an account, and added an error throw if the account is not found.…g account