Make file extension comparisons more robust

Wehn detecting file format via file extension we should compare
it in case-insensitive way.

CCBUG:447454

libs/libqml/plugins/kritasketchplugin/models/RecentImageImageProvider.cpp

@@ -32,7 +32,7 @@ QImage RecentImageImageProvider::requestImage(const QString &id, QSize *size, co
     QImage thumbnail;
 
     if (f.exists()) {
-        if (f.fileName().endsWith(".kra")) {
+        if (f.fileName().endsWith(".kra", Qt::CaseInsensitive)) {
             // try to use any embedded thumbnail
             KoStore *store = KoStore::createStore(id, KoStore::Read);
 

libs/resources/KisResourceCacheDb.cpp

@@ -884,7 +884,7 @@ bool KisResourceCacheDb::addResource(KisResourceStorageSP storage, QDateTime tim
     } else if (storage->location() == "memory") {
         translationContext = "memory/" + resourceType + "/" + resource->filename();
     }
-    else if (resource->filename().endsWith(".myb")) {
+    else if (resource->filename().endsWith(".myb", Qt::CaseInsensitive)) {
         translationContext = "./plugins/paintops/mypaint/brushes/" + resource->filename();
     } else {
         translationContext = "./krita/data/" + resourceType + "/" + resource->filename();

libs/ui/KisApplication.cpp

@@ -626,7 +626,7 @@ bool KisApplication::start(const KisApplicationArguments &args)
                     return true;
                 }
                 else if (d->mainWindow) {
-                    if (fileName.endsWith(".bundle")) {
+                    if (fileName.endsWith(".bundle", Qt::CaseInsensitive)) {
                         d->mainWindow->installBundle(fileName);
                     }
                     else {

libs/ui/KisWelcomePageWidget.cpp

@@ -441,7 +441,7 @@ void KisWelcomePageWidget::dropEvent(QDropEvent *event)
 
     if (event->mimeData()->hasUrls() && !event->mimeData()->urls().empty()) {
         Q_FOREACH (const QUrl &url, event->mimeData()->urls()) {
-            if (url.toLocalFile().endsWith(".bundle")) {
+            if (url.toLocalFile().endsWith(".bundle", Qt::CaseInsensitive)) {
                 bool r = m_mainWindow->installBundle(url.toLocalFile());
                 if (!r) {
                     qWarning() << "Could not install bundle" << url.toLocalFile();

libs/ui/animation/KisFFMpegWrapper.cpp

@@ -371,7 +371,7 @@ QJsonObject KisFFMpegWrapper::findProcessPath(const QString &processName, const
         if (proposedPaths[i].endsWith('/')) {
             continue;
         }
-        if (!proposedPaths[i].endsWith(".exe")) {
+        if (!proposedPaths[i].endsWith(".exe", Qt::CaseInsensitive)) {
             if (!QFile::exists(proposedPaths[i])) {
                 proposedPaths[i] += ".exe";
                 if (!QFile::exists(proposedPaths[i])) {

libs/ui/widgets/kis_preset_live_preview_view.cpp

@@ -254,7 +254,7 @@ void KisPresetLivePreviewView::setupAndPaintStroke()
             qreal diameterToBrushRatio = 1.0;
             qreal diameter = settings->getInt("Spray/diameter");
             //hack, 1000 being the maximum possible brushsize.
-            if (brush->filename().endsWith(".svg")) {
+            if (brush->filename().endsWith(".svg", Qt::CaseInsensitive)) {
                 diameterToBrushRatio = diameter/(1000.0*scale);
                 scale = 25.0 / 1000.0;
             } else {

plugins/paintops/mypaint/MyPaintPaintOpPreset.cpp

@@ -137,7 +137,7 @@ bool KisMyPaintPaintOpPreset::loadFromDevice(QIODevice *dev, KisResourcesInterfa
             apply(settings());
             // correct filename
             const QString f = filename();
-            if (f.endsWith(".myb")) {
+            if (f.endsWith(".myb", Qt::CaseInsensitive)) {
                 setFilename(QFileInfo(f).completeBaseName().append(KisPaintOpPreset::defaultFileExtension()));
             }
             return true;