feat: Leader列表显示仓位资产

- 列表新增仓位资产列
- 移动端卡片新增仓位资产Tag
- 文案'仓位余额'改为'仓位资产'
- 仓位资产使用紫色Tag显示

frontend/src/locales/en/common.json

@@ -502,7 +502,7 @@
     "balanceInfo": "Balance Information",
     "refresh": "Refresh",
     "availableBalance": "Available Balance",
-    "positionBalance": "Position Balance",
+    "positionBalance": "Position Asset",
     "totalBalance": "Total Balance",
     "positions": "Positions",
     "noPositions": "No positions",

frontend/src/locales/zh-CN/common.json

@@ -502,7 +502,7 @@
     "balanceInfo": "余额信息",
     "refresh": "刷新",
     "availableBalance": "可用余额",
-    "positionBalance": "仓位余额",
+    "positionBalance": "仓位资产",
     "totalBalance": "总余额",
     "positions": "持仓列表",
     "noPositions": "暂无持仓",

frontend/src/locales/zh-TW/common.json

@@ -502,7 +502,7 @@
     "balanceInfo": "餘額信息",
     "refresh": "刷新",
     "availableBalance": "可用餘額",
-    "positionBalance": "倉位餘額",
+    "positionBalance": "倉位資產",
     "totalBalance": "總餘額",
     "positions": "持倉列表",
     "noPositions": "暫無持倉",