Remove trailing whitespace + indentation consistency fixes

src/qt/qt_softwarerenderer.cpp

@@ -60,7 +60,7 @@ void SoftwareRenderer::onBlit(int buf_idx, int x, int y, int w, int h) {
 
     cur_image = buf_idx;
     buf_usage[(buf_idx + 1) % 2].clear();
-    
+
     source.setRect(x, y, w, h);
     update();
 }