BarSysMon: added tooltip to show mountpoint

Modules/Bar/Widgets/SystemMonitor.qml

@@ -502,6 +502,7 @@ Rectangle {
         }
 
         NText {
+          id: toto
           text: SystemStatService.diskPercents[diskPath] ? `${SystemStatService.diskPercents[diskPath]}%` : "n/a"
           family: Settings.data.ui.fontFixed
           pointSize: textSize
@@ -517,6 +518,17 @@ Rectangle {
           Layout.column: isVertical ? 0 : 1
           scale: isVertical ? Math.min(1.0, root.width / implicitWidth) : 1.0
         }
+
+        MouseArea {
+          anchors.fill: parent
+          hoverEnabled: true
+          onEntered: {
+            TooltipService.show(screen, diskContent, diskPath, BarService.getTooltipDirection());
+          }
+          onExited: {
+            TooltipService.hide();
+          }
+        }
       }
     }
   }