feat(bar): unify popup handling and improve layouts

- Unified popup handling in ClockWidget, Resource, BatteryPopup, and WeatherBar
  using PanelWindow + LazyLoader for consistent positioning and compositor animations.
- Replaced plain text with ColumnLayout and RowLayout where possible, adding
  MaterialSymbol icons for improved visual consistency with the overall desktop style.
- Added Translation.tr() for bilingual (Chinese/English) support to avoid hardcoded strings.
- Based on improvements from PR #1771 (mine) and PR #1773 (by @finjener), merged and refined into a more polished and practical solution.

.config/quickshell/translations/en_US.json

@@ -316,5 +316,24 @@
   "Time to empty:": "Time to empty:",
   "Fully charged": "Fully charged",
   "Charging:": "Charging:",
-  "Discharging:": "Discharging:"
+  "Discharging:": "Discharging:",
+  "Uptime:": "Uptime:",
+  "Upcoming Tasks:": "Upcoming Tasks:",
+  "No pending tasks": "No pending tasks",
+  "... and %1 more": "... and %1 more",
+  "Memory Usage": "Memory Usage",
+  "Used:": "Used:",
+  "Free:": "Free:",
+  "Total:": "Total:",
+  "Usage:": "Usage:",
+  "Swap Usage": "Swap Usage",
+  "Swap:": "Swap:",
+  "Not configured": "Not configured",
+  "CPU Usage": "CPU Usage",
+  "Current:": "Current:",
+  "Load:": "Load:",
+  "High": "High",
+  "Medium": "Medium",
+  "Low": "Low",
+  "System Resource": "System Resource"
 }

.config/quickshell/translations/zh_CN.json

@@ -316,5 +316,24 @@
   "Time to empty:": "距离耗尽：",
   "Fully charged": "已充满电",
   "Charging:": "充电功率：",
-  "Discharging:": "放电功率："
+  "Discharging:": "放电功率：",
+  "Uptime:": "运行时间：",
+  "Upcoming Tasks:": "待办任务：",
+  "No pending tasks": "没有待办任务",
+  "... and %1 more": "... 还有 %1 个",
+  "Memory Usage": "内存使用情况",
+  "Used:": "已用：",
+  "Free:": "可用：",
+  "Total:": "总计：",
+  "Usage:": "占比：",
+  "Swap Usage": "交换区使用情况",
+  "Swap:": "交换区：",
+  "Not configured": "未配置",
+  "CPU Usage": "CPU 使用情况",
+  "Current:": "当前占比：",
+  "Load:": "负载：",
+  "High": "高",
+  "Medium": "中",
+  "Low": "低",
+  "System Resource": "系统资源"
 }