fix(accounts): correct typos in account type constants

[abouolia]

Summary

• Fix 'none-current-asset' → 'non-current-asset' typo in ACCOUNT_TYPE constant (backend and frontend)
• Fix 'non-ACCOUNT_PARENT_TYPE.CURRENT_ASSET' → 'non-current-asset' copy-paste error in frontend ACCOUNT_PARENT_TYPE
• Fix 'expene' → 'expense' typo in ACCOUNT_ROOT_TYPE
• Add database migration to update existing records with the corrected account type value

Changes

Backend:

• packages/server/src/constants/accounts.ts - Fixed NON_CURRENT_ASSET value
• packages/server/src/modules/Accounts/Accounts.constants.ts - Fixed NON_CURRENT_ASSET value
• packages/server/src/database/tenant/migrations/20260316000000_fix_account_type_typos.ts - New migration to fix existing data

Frontend:

• packages/webapp/src/constants/accountTypes.tsx - Fixed NON_CURRENT_ASSET and EXPENSE values

Test plan

• Run database migration and verify existing records are updated
• Create a new "Non-Current Asset" account and verify it uses correct type
• Verify balance sheet reports still work correctly
• Query database to confirm no records remain with account_type = 'none-current-asset'

Fixes #1041

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