* eglot.el (eglot-handle-notification): Pass on diagnostics from
unvisited files to flymake. Enables project-wide-diagnostics, so that
we can view all diagnostics in a given workspace. Uses new
functionality from flymake 1.2.1, hence the version bump.
* eglot-tests.el (project-wide-diagnostics-typescript): New tests
showcasing the possibility to see all related diagnostics in a
workspace.
* eglot-tests.el (project-wide-diagnostics-rust-analyzer): New tests
showcasing the possibility to see all related diagnostics in a
workspace.
* NEWS.md: Mention the new functionality
* README.md: Mention the new functionality