feat(lang): add i18n config for hover-nav component

新增中英文国际化配置，用于hover-nav组件的语言选择弹窗相关文案

lang/en-us/components/hover-nav.js

@@ -0,0 +1,8 @@
+export const lang = {
+	// ===== hover-nav component =====
+	hoverNav: {
+		// Language picker popup
+		langPickerTitle: 'Select Language',
+		langPickerCancel: 'Cancel',
+	}
+}

lang/zh-cn/components/hover-nav.js

@@ -0,0 +1,8 @@
+export const lang = {
+	// ===== hover-nav 组件 =====
+	hoverNav: {
+		// 语言选择弹窗
+		langPickerTitle: '选择语言',
+		langPickerCancel: '取消',
+	}
+}