Wallpaper refining (#81)

* Wallpaper refining

- Swww: allow all images formats supported by Swww but only show the one
we can render in the panel
- Fix: timer should be restarted when selecting a wallpaper
- Fix: avoid recomputing selected thumbnail by altering the border width
- Removed LazyLoader as it was not helping

* Wallpapers changes

- revert: maintaining a single list all wallpapers, support only basic
images format.
- settings: reordered wallpapers settings and made the Swww settings
conditionals to activating the useSWWW toggle

* Fix broken avatar display in Panel, Settings and LockScreen

---------

Co-authored-by: Sébastien Atoch <sebastien@atracktiv.com>

Widgets/Sidebar/Config/ProfileSettings.qml

@@ -55,13 +55,21 @@ Rectangle {
                 spacing: 8
                 Layout.fillWidth: true
 
+                // Profile image
                 Rectangle {
-                    width: 40
-                    height: 40
-                    radius: 20
-                    color: Theme.surfaceVariant
-                    border.color: profileImageInput.activeFocus ? Theme.accentPrimary : Theme.outline
-                    border.width: 1
+                    width: 48
+                    height: 48
+                    radius: 24
+
+                    // Border
+                    Rectangle {
+                        anchors.fill: parent
+                        color: "transparent"
+                        radius: 24
+                        border.color: profileImageInput.activeFocus ? Theme.accentPrimary : Theme.outline
+                        border.width: 2
+                        z: 2
+                    }
 
                     Avatar {}
                 }