Adjust not to show CutefishOS on other distributions

https://github.com/cutefishos/settings/issues/14

src/about.cpp

@@ -1,5 +1,6 @@
 #include "about.h"
 
+#include <QFile>
 #include <KFormat>
 #include <QStorageInfo>
 #include <QRegularExpression>
@@ -16,6 +17,11 @@ About::About(QObject *parent)
 {
 }
 
+bool About::isCutefishOS()
+{
+    return QFile::exists("/etc/cutefishos");
+}
+
 QString About::osName()
 {
     return QSysInfo::prettyProductName();

src/about.h

@@ -9,6 +9,7 @@
 class About : public QObject
 {
     Q_OBJECT
+    Q_PROPERTY(bool isCutefishOS READ isCutefishOS CONSTANT)
     Q_PROPERTY(QString osName READ osName CONSTANT)
     Q_PROPERTY(QString architecture READ architecture CONSTANT)
     Q_PROPERTY(QString kernelVersion READ kernelVersion CONSTANT)
@@ -22,6 +23,8 @@ class About : public QObject
 public:
     explicit About(QObject *parent = nullptr);
 
+    bool isCutefishOS();
+
     QString osName();
     QString architecture();
     QString kernelType();

src/qml/About/Main.qml

@@ -57,24 +57,20 @@ ItemPage {
 
             Label {
                 Layout.alignment: Qt.AlignTop | Qt.AlignHCenter
-                text: "<b>CutefishOS</b>"
+                text: about.isCutefishOS ? "<b>CutefishOS</b>" : "<b>Cutefish</b>"
                 font.pointSize: 22
                 color: "#3385FF"
                 leftPadding: FishUI.Units.largeSpacing * 2
                 rightPadding: FishUI.Units.largeSpacing * 2
             }
 
-            Item {
-                height: FishUI.Units.largeSpacing
+            Label {
+                text: qsTr("Built on ") + about.prettyProductName
+                Layout.alignment: Qt.AlignTop | Qt.AlignHCenter
+                bottomPadding: FishUI.Units.largeSpacing * 2
+                color: FishUI.Theme.disabledTextColor
             }
 
-//            Label {
-//                text: qsTr("Built on ") + about.prettyProductName
-//                Layout.alignment: Qt.AlignTop | Qt.AlignHCenter
-//                bottomPadding: FishUI.Units.largeSpacing * 2
-//                color: FishUI.Theme.disabledTextColor
-//            }
-
             RoundedItem {
                 StandardItem {
                     key: qsTr("System Version")