ui: Fixes for upcoming release

* improved comment colors in all color schemes
* improved contrasts for dark color scheme
* fixed error locations stay visible when activating file in single file view
* removed scroll speed change listener from search autocompletion because it caused slowdown on macOS
* fixed bounding rects of graph edges to contain arrow
* fixed tooltip list shown with just one element

src/lib/component/controller/CodeController.cpp

@@ -314,7 +314,10 @@ void CodeController::handleMessage(MessageShowErrors* message)
 
 		std::sort(snippets.begin(), snippets.end(), CodeSnippetParams::sortById);
 
-		expandVisibleSnippets(&snippets, false);
+		if (view->isInListMode())
+		{
+			expandVisibleSnippets(&snippets, false);
+		}
 
 		CodeView::CodeParams params;
 		params.clearSnippets = true;