Rename some filers and folder for clarity

src/gui/Base/HPopup.qml

@@ -0,0 +1,35 @@
+import QtQuick 2.12
+import QtQuick.Controls 2.12
+
+Popup {
+    id: popup
+    anchors.centerIn: Overlay.overlay
+    modal: true
+    focus: true
+    padding: 0
+    margins: theme.spacing
+
+    enter: Transition {
+        HNumberAnimation { property: "scale"; from: 0; to: 1; overshoot: 4 }
+    }
+
+    exit: Transition {
+        HNumberAnimation { property: "scale"; to: 0 }
+    }
+
+    background: Rectangle {
+        color: theme.controls.popup.background
+    }
+
+    onAboutToShow: previouslyFocused = window.activeFocusItem
+    onClosed: if (previouslyFocused) previouslyFocused.forceActiveFocus()
+
+
+    property var previouslyFocused: null
+
+    readonly property int maximumPreferredWidth:
+        window.width - leftMargin - rightMargin - leftInset - rightInset
+
+    readonly property int maximumPreferredHeight:
+        window.height - topMargin - bottomMargin - topInset - bottomInset
+}