Added native menu bar notes on macos to release notes

Author: azonenberg

release-notes/v0.1.md

@@ -78,3 +78,4 @@ It's not perfect, but if we waited until it was we'd never ship. Here's a few of
 * GUI light mode is impractical to use. Many color defaults are set assuming dark mode and have poor contrast when light mode is selected unless dozens of preferences are individually updated to match, and toolbar icons don't have light mode variants (https://github.com/ngscopeclient/scopehal-apps/issues/526)
 * Filter graph nodes are reference counted and should (occasionally this does not happen due to dangling reference bugs) self-delete when all consumers of their output (waveform views, filter inputs, etc.) are removed. This is non-ideal from a user experience perspective, but can't be fixed without substantial refactorings (planned for v0.2) and we didn't want to delay shipping v0.1 any further. v0.2 will eliminate the homegrown reference counting in favor of std::shared_ptr which should completely eliminate this class of bug, as well as making the filter graph bidirectionally traversable which will enable manual deletion of filters and many optimizations such as not computing filter block outputs which are not being displayed or used in computations (https://github.com/ngscopeclient/scopehal/issues/992).
 * OS integration including drag-and-drop to open files, double clicking files to open, etc. is incomplete on some platforms (https://github.com/ngscopeclient/scopehal-apps/issues/890)
+* Menu bar on MacOS is attached to the application like on other OSes, rather than at the top of the screen in the native menu (https://github.com/ngscopeclient/scopehal-apps/issues/510)