💄 fix(ui): improve uptime card layout and request count icon

- Remove flex layout from uptime service card to eliminate bottom spacing
- Remove flex-1 and mt-auto classes that caused unnecessary stretching
- Replace IconRotate with IconSend for request count to better represent the semantic meaning
- Legend now sits directly below content instead of being pushed to bottom

Fixes the visual issue where uptime service availability card had unwanted white space at the bottom when content was minimal.

web/src/i18n/locales/en.json

@@ -1630,6 +1630,7 @@
   "请联系管理员在系统设置中配置Uptime": "Please contact the administrator to configure Uptime in the system settings.",
   "确定要删除此API信息吗？": "Are you sure you want to delete this API information?",
   "测速": "Speed Test",
+  "跳转": "Jump",
   "批量删除": "Batch Delete",
   "常见问答": "FAQ",
   "进行中": "Ongoing",