Adds +ibuffer/visit-workspace-buffer, which will switch to a buffer's
containing workspace before switching to the buffer. This will prompt if
a buffer is present in multiple workspaces. If given the prefix
argument, it will auto-select the first workspace.
Fix: #5061Close: #5351
Co-authored-by: petr-tik <petr-tik@users.noreply.github.com>