Move error message hack outside of scene render loop

Use std::string_view instead of std::string in more places

modules/base/rendering/renderablelabels.cpp

@@ -719,7 +719,7 @@ void RenderableLabels::renderLabels(const RenderData& data,
     ghoul::fontrendering::FontRenderer::defaultProjectionRenderer().render(
         *_font,
         transformedPos,
-        _labelText,
+        _labelText.value(),
         textColor,
         labelInfo
     );

modules/globebrowsing/src/tileprovider.cpp

@@ -1293,8 +1293,6 @@ void reset(TileProvider& tp) {
 
 
 int maxLevel(TileProvider& tp) {
-    ZoneScoped
-
     switch (tp.type) {
         case Type::DefaultTileProvider: {
             DefaultTileProvider& t = static_cast<DefaultTileProvider&>(tp);