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

widgets/sidebar/WidgetCard.qml

@@ -0,0 +1,31 @@
+import QtQuick
+import "../../config" as Cfg
+
+Rectangle {
+    id: card
+
+    anchors { left: parent.left; right: parent.right }
+
+    implicitHeight: contentArea.childrenRect.height + 28
+
+    radius: Cfg.Config.popupRadius
+    color: Cfg.Config.theme.bgPopup
+    border.color: Qt.alpha(Cfg.Config.theme.accent, 0.18)
+    border.width: 1
+    clip: true
+
+    default property alias content: contentArea.data
+
+    Item {
+        id: contentArea
+        anchors {
+            top: parent.top
+            left: parent.left
+            right: parent.right
+            topMargin: 14
+            leftMargin: 14
+            rightMargin: 14
+        }
+        height: childrenRect.height
+    }
+}