Add login page

qtquick/SailfinStyle.qml

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+pragma Singleton
+import QtQuick 2.12
+
+QtObject {
+    readonly property real scaleFactor: 1.0
+    readonly property real unit: 8.0 * scaleFactor
+    readonly property real smallPadding: unit
+    readonly property real mediumPadding: 2 * unit
+    readonly property real largePadding: 3 * unit
+    readonly property real hugePadding: 4 * unit
+    readonly property real enormousPadding: 5 * unit
+
+    // Fonts
+    readonly property real fontMultiplier: 1.0
+    readonly property real fontSizeMedium: 3 * unit * fontMultiplier
+    readonly property real fontSizeLarge: 4 * unit * fontMultiplier
+
+    // Specific controls
+    readonly property real toolbarHeight: 8 * unit
+}