背景壁纸增加自定义API，优化输入提示

src/locales/en-US.ts

@@ -1074,6 +1074,8 @@ export default {
       mb: 'MB',
       hour: 'hour',
       customizeWallpaperApi: 'Customize Wallpaper Api',
+      customizeWallpaperApiHint:
+        'It will get the image file extension format images that are allowed in all the settings in the content returned by the API.',
       customizeWallpaperApiRequired: 'Required field; please enter Wallpaper API',
     },
     site: {

src/locales/zh-CN.ts

@@ -1065,6 +1065,7 @@ export default {
       mb: 'MB',
       hour: '小时',
       customizeWallpaperApi: '自定义壁纸API',
+      customizeWallpaperApiHint: '会获取API返回内容中所有设置中允许的图片文件后缀格式图片',
       customizeWallpaperApiRequired: '必填项；请输入自定义壁纸API',
     },
     site: {

src/locales/zh-TW.ts

@@ -1067,6 +1067,7 @@ export default {
       mb: 'MB',
       hour: '小時',
       customizeWallpaperApi: '自定義壁紙API',
+      customizeWallpaperApiHint: '會獲取 API 返回內容中所有設置中允許的圖片文件後綴格式圖片',
       customizeWallpaperApiRequired: '必填項；請輸出自定義壁紙API',
     },
     site: {

src/views/setting/AccountSettingSystem.vue

@@ -427,7 +427,7 @@ onDeactivated(() => {
                     <VTextField
                       v-model="SystemSettings.Basic.CUSTOMIZE_WALLPAPER_API_URL"
                       :label="t('setting.system.customizeWallpaperApi')"
-                      :hint="t('setting.system.customizeWallpaperApi')"
+                      :hint="t('setting.system.customizeWallpaperApiHint')"
                       :placeholder="t('setting.system.customizeWallpaperApi')"
                       persistent-hint
                       :rules="[v => !!v || t('setting.system.customizeWallpaperApiRequired')]"