Feature Request: Support `textDocument/inlineCompletion`

[michaelfortunato]

Hi, there is a new endpoint called textDocument/inlineCompletion in the upcoming LSP 3.18 to standardize AI based completions, which are often larger than the token-sized completions of a traditional LSP.

Neovim recently introduced native support for this endpoint after PR neovim/neovim#33972.
It would be great if minuet-ai.nvim could support this endpoint. I think the change would be scoped to minuet's lua/minuet/lsp.lua file.

Thanks.