LSP inline completion with corfu

[dschrempf]

Hi! Thanks for adding inline completions to lsp-mode! I have seen that the original PR handles company-mode completions but does not do so for corfu. I am using the following snippet to cancel corfu completion suggestions before invoking lsp-mode inline completions (I am using LSP inline completions on demans):

  (defun lean-lsp-inline-completion-display ()
    "Like `lsp-inline-completion-display' but quit `corfu' completion overlays."
    (interactive)
    (corfu-quit)
    (lsp-inline-completion-display))

If you are also using corfu, and have solved the issue in a different way, let me know!