feat(StatusListItem) expose content children and introduce padding properties

These properties are needed to enable more control over how a list
item implementation can look like.

Content children are exposed as follows:

```qml
StatusListItem {
    statusListItemTitle.[...]: ... // StatusBaseText
    sensor.[...]: ... // MouseArea

    rightPadding: ... // default 16
    leftPadding: .. // default 16
}
```

ui/StatusQ/src/StatusQ/Components/StatusListItem.qml

@@ -15,6 +15,8 @@ Rectangle {
 
     property string title: ""
     property string subTitle: ""
+    property real leftPadding: 16
+    property real rightPadding: 16
     property StatusIconSettings icon: StatusIconSettings {
         height: 20
         width: 20
@@ -27,6 +29,10 @@ Rectangle {
     property StatusImageSettings image: StatusImageSettings {}
     property string label: ""
 
+    property alias sensor: sensor
+    property alias statusListItemTitle: statusListItemTitle
+    property alias statusListItemComponentsSlot: statusListItemComponentsSlot
+
     property list<Item> components
 
     onComponentsChanged: {
@@ -47,7 +53,7 @@ Rectangle {
         Loader {
             id: iconOrImage
             anchors.left: parent.left
-            anchors.leftMargin: 16
+            anchors.leftMargin: statusListItem.leftPadding
             anchors.verticalCenter: parent.verticalCenter
             sourceComponent: !!statusListItem.icon.name ? statusRoundedIcon : statusRoundedImage
             active: !!statusListItem.icon.name || !!statusListItem.image.source.toString()
@@ -74,7 +80,7 @@ Rectangle {
 
         Item {
             anchors.left: iconOrImage.active ? iconOrImage.right : parent.left
-            anchors.leftMargin: 16
+            anchors.leftMargin: statusListItem.leftPadding
             anchors.verticalCenter: parent.verticalCenter
             height: statusListItemTitle.height + (statusListItemSubTitle.visible ? statusListItemSubTitle.height : 0)
 
@@ -111,7 +117,7 @@ Rectangle {
         Row {
             id: statusListItemComponentsSlot
             anchors.right: parent.right
-            anchors.rightMargin: 16
+            anchors.rightMargin: statusListItem.rightPadding
             anchors.verticalCenter: parent.verticalCenter
             spacing: 10
         }