added two new themes, reworked Crypto.qml and Stats.qml, standardized the buttons for the modules, added a new Sidebar widget which contains new 3 modules

bar/modules/Network.qml

@@ -306,7 +306,7 @@ ModuleChip {
 
                                 Layout.fillWidth: true
                                 height:  50
-                                radius:  10
+                                radius:  8
                                 color: {
                                     var active = modelData.connected || false
                                     if (active)          return root.t.netApActiveBg
@@ -407,7 +407,7 @@ ModuleChip {
                             visible:          root.wifiUp
                             Layout.fillWidth: true
                             Layout.topMargin: 4
-                            height: 36; radius: 10
+                            height: 36; radius: 8
                             color:        discoHover.hovered
                                           ? root.t.netDisconnectBg : "transparent"
                             border.color: root.t.netDisconnectBorder