Added share icon from nc server repo, changed corresp. btn icon

Signed-off-by: Dominique Fuchs <32204802+DominiqueFuchs@users.noreply.github.com>

src/gui/tray/Window.qml

@@ -630,7 +630,7 @@ Window {
                     hoverEnabled: true
                     visible: (path === "") ? false : true
                     display: AbstractButton.IconOnly
-                    icon.source: "qrc:///client/theme/public.svg"
+                    icon.source: "qrc:///client/theme/share.svg"
                     icon.color: "transparent"
                     background: Rectangle {
                         color: parent.hovered ? Style.lightHover : "transparent"

theme.qrc

@@ -160,5 +160,6 @@
         <file>theme/colored/Nextcloud-icon.svg</file>
         <file>theme/colored/Nextcloud-sidebar.svg</file>
         <file>theme/add.svg</file>
+        <file>theme/share.svg</file>
     </qresource>
 </RCC>

theme/share.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" viewBox="0 0 16 16"><circle cx="3.5" cy="8" r="2.5"/><circle cy="12.5" cx="12.5" r="2.5"/><circle cx="12.5" cy="3.5" r="2.5"/><path d="m3.5 8 9 4.5m-9-4.5 9-4.5" stroke="#000" stroke-width="2" fill="none"/></svg>