Fix Copilot review comments: typo in keyVaultExport, update container-registry comment

- Fix typo: 'ecrets' -> 'secrets' in keyVaultExport.bicep parameter description
- Update container-registry.bicep comment to accurately describe networkRuleSetDefaultAction behavior

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Abdul-Microsoft

infra/modules/account/modules/keyVaultExport.bicep

@@ -2,7 +2,7 @@
 //   Parameters   //
 // ============== //
 
-@description('Required. The name of the Key Vault to set the ecrets in.')
+@description('Required. The name of the Key Vault to set the secrets in.')
 param keyVaultName string
 
 import { secretToSetType } from 'br/public:avm/utl/types/avm-common-types:0.7.0'