Replace LS crashes with architecture checks that are more actionable for the user

In cases like https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1873813, we get crashes because VSCode installed the wrong architecture. This is tracked by https://github.com/microsoft/vscode/issues/185218


Can we replace the above toasts with a more actionable error/toast to ask the user to uninstall and reinstall again if the arch does not match?

Note from David: We'll have to be a bit careful for mac though, its valid to have an x64 version of the extension on an arm64 macOS (if you install the universal version of vscode)