fix: include - as identifier

[phanen]

Parser only match "fzf" as a type here rather than "fzf-lua.xx".

---@class fzf-lua.foo
---@field bar

Since lua-language-server's semantic token highlighting work properly, if we can include - as a identifier here?

The disadvantage is that it will also highlight -baz in @field bar-baz (which seems unexpected).

Or separate type_identifier (e.g. only for @class/@type/@as/@alias/...) from identifier, but it seems too overkill (which need to tweak some test and upstream query in nvim-treesitter repo).