refactor(i18n): 扁平化所有国际化语言文件的翻译结构

移除多层嵌套的翻译对象，将所有翻译项直接挂载到顶层lang对象上，统一代码结构

lang/en-us/fenxiao/withdrawal_detail.js

@@ -3,17 +3,14 @@ export const lang = {
 	// title: 'Withdrawal Details',
 	title: '',
 
-	// Detail labels
-	withdrawalDetail: {
-		currentStatus: 'Current Status',
-		transactionNo: 'Transaction No.',
-		serviceFee: 'Service Fee',
-		applyTime: 'Apply Time',
-		auditTime: 'Audit Time',
-		bankName: 'Bank Name',
-		receivingAccount: 'Receiving Account',
-		refuseReason: 'Rejection Reason',
-		transferTypeName: 'Transfer Method',
-		transferTime: 'Transfer Time',
-	},
+	currentStatus: 'Current Status',
+	transactionNo: 'Transaction No.',
+	serviceFee: 'Service Fee',
+	applyTime: 'Apply Time',
+	auditTime: 'Audit Time',
+	bankName: 'Bank Name',
+	receivingAccount: 'Receiving Account',
+	refuseReason: 'Rejection Reason',
+	transferTypeName: 'Transfer Method',
+	transferTime: 'Transfer Time',
 }