Improve how we tell the frontend an licence is not free

discover/qml/ApplicationPage.qml

@@ -352,7 +352,7 @@ DiscoverPage {
                                     wrapMode: Text.Wrap
                                     maximumLineCount: 3
                                     elide: Text.ElideRight
-                                    color: text.toLowerCase().includes(i18n("proprietary")) ? Kirigami.Theme.neutralTextColor: enabled ? Kirigami.Theme.linkColor : Kirigami.Theme.textColor
+                                    color: !modelData.free ? Kirigami.Theme.neutralTextColor: enabled ? Kirigami.Theme.linkColor : Kirigami.Theme.textColor
                                 }
                             }
 
@@ -371,7 +371,7 @@ DiscoverPage {
                             Kirigami.LinkButton {
                                 readonly property bool hasProprietaryLicense: {
                                     const match = appInfo.application.licenses.find(element => {
-                                        return element.name.toLowerCase().includes(i18n("proprietary"));
+                                        return !element.free;
                                     });
                                     return match;
                                 }

libdiscover/appstream/AppStreamUtils.cpp

@@ -68,9 +68,19 @@ QJsonArray AppStreamUtils::licenses(const AppStream::Component &appdata)
     for (const auto &token : licenses) {
         QString license = token;
         license.remove(0, 1); // tokenize prefixes with an @ for some reason
+
+        QString name = license;
+        if (license == QLatin1String("LicenseRef-proprietary")) {
+            name = i18n("Proprietary");
+        }
+
         if (!AppStream::SPDX::isLicenseId(license))
             continue;
-        ret.append(QJsonObject{{QStringLiteral("name"), license}, {QStringLiteral("url"), {AppStream::SPDX::licenseUrl(license)}}});
+        ret.append(QJsonObject{
+            {QStringLiteral("name"), name},
+            {QStringLiteral("url"), {AppStream::SPDX::licenseUrl(license)}},
+            {QStringLiteral("free"), AppStream::SPDX::isFreeLicense(license)},
+        });
     }
     return ret;
 }