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/ii/modules/bar/BatteryPopup.qml

@@ -53,7 +53,7 @@ Rectangle {
                         var h = Math.floor(seconds / 3600);
                         var m = Math.floor((seconds % 3600) / 60);
                         if (h > 0)
-                            return `${h}h ${m}m`;
+                            return `${h}h, ${m}m`;
                         else
                             return `${m}m`;
                     }