Initial login logic

- Get instance general information
- Add BusyIndicator

src/Gui/Style/PStyle/PStackView.qml

@@ -0,0 +1,41 @@
+import QtQuick
+import QtQuick.Controls
+import "."
+
+StackView {
+  pushEnter: Transition {
+    PropertyAnimation {
+      property: "opacity"
+      from: 0
+      to: 1
+      duration: PStyle.animationDuration
+    }
+  }
+
+  pushExit: Transition {
+    PropertyAnimation {
+      property: "opacity"
+      from: 1
+      to: 0
+      duration: PStyle.animationDuration
+    }
+  }
+
+  popEnter: Transition {
+    PropertyAnimation {
+      property: "opacity"
+      from: 0
+      to: 1 
+      duration: PStyle.animationDuration
+    }
+  }
+
+  popExit: Transition {
+    PropertyAnimation {
+      property: "opacity"
+      from: 1
+      to: 0
+      duration: PStyle.animationDuration
+    }
+  }
+}