Add i18n changes we can't do in the stable branch due to string freeze

src/app/HealthCertificateTest.qml

@@ -72,11 +72,10 @@ ColumnLayout {
                     return certificate.resultString;
                 }
                 switch (certificate.result) {
-                    // TODO as we are past the string freeze this reuses already existing strings that are close to what we want, fix this is master
                     case KHC.TestCertificate.Positive:
-                        return i18n('Positive test');
+                        return i18nc('test result', 'Positive');
                     case KHC.TestCertificate.Negative:
-                        return i18n('Negative test');
+                        return i18nc('test result', 'Negative');
                 }
             }
             Kirigami.FormData.label: i18n("Result:")

src/app/healthcertificatemanager.cpp

@@ -110,11 +110,14 @@ QVariant HealthCertificateManager::data(const QModelIndex &index, int role) cons
 #if HAVE_KHEALTHCERTIFICATE
             if (v.cert.userType() == qMetaTypeId<KVaccinationCertificate>()) {
                 const auto cert = v.cert.value<KVaccinationCertificate>();
-                return i18n("Vaccination %1/%2 (%3)", cert.dose(), cert.totalDoses(), cert.name());
+                if (cert.dose() > 0 && cert.totalDoses() > 0) {
+                    return i18n("Vaccination %1/%2 (%3)", cert.dose(), cert.totalDoses(), cert.name());
+                }
+                return i18n("Vaccination (%1)", cert.name());
             }
             if (v.cert.userType() == qMetaTypeId<KTestCertificate>()) {
                 const auto cert = v.cert.value<KTestCertificate>();
-                return i18n("Test %1 (%2)", QLocale().toString(cert.date(), QLocale::NarrowFormat), cert.name());
+                return i18n("Test %1 (%2)", QLocale().toString(cert.date().isValid() ? cert.date() : cert.certificateIssueDate().date(), QLocale::NarrowFormat), cert.name());
             }
             if (v.cert.userType() == qMetaTypeId<KRecoveryCertificate>()) {
                 const auto cert = v.cert.value<KRecoveryCertificate>();

src/app/localizer.cpp

@@ -142,7 +142,7 @@ QString Localizer::formatDate(const QVariant &obj, const QString &propertyName)
     }
 
     if (dt.year() <= 1900) { // no year specified
-        return dt.toString(QStringLiteral("dd MMMM")); // TODO i18n in master
+        return dt.toString(i18nc("day-only date format", "dd MMMM"));
     }
     return QLocale().toString(dt, QLocale::ShortFormat);
 }