Apply localization to account-holder-search filter component

Replace all hardcoded Korean text with dynamic translation keys
in the account-holder-search filter component for internationalization
support.

Changes:
- Add translation keys for filter labels (select, bank, search result)
- Replace filter title, close button, merchant, and apply button text
- Update bank select options and form field labels with i18n keys

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/locales/en.json

@@ -578,7 +578,7 @@
             "orderNumber": "Order No.",
             "tid": "TID",
             "approval": "Approval",
-            "approvalComplete": "Approval/Payment Complete",
+            "approvalComplete": "Approved / Paid",
             "cancel": "Cancel",
             "cancelShort": "Post-cancel",
             "totalCancel": "Pre-cancel / Cancel",
@@ -839,7 +839,11 @@
         },
         "accountHolderSearch": {
             "accountHolder": "Account Holder",
-            "accountNumber": "Account Number"
+            "accountNumber": "Account Number",
+            "accountHolderOrAccountNumber": "Account Holder/Account Number",
+            "searchResult": "Search Result",
+            "bank": "Bank",
+            "select": "Select"
         },
         "faceAuth": {
             "authentication": "Authentication",