feat(fzf): fix fzf integration

[aaronlifton]

Description

<leader>snt wasn't working properly

• the same fzf compatibility update as fix(fzf-lua): update update_title and update_scrollbar to update_preview_title and update_preview_scrollbar #1034
• the hl_group update from fix(telescope): handle hl_group ID correctly in picker #1032 but for fzf.lua

Those PRs should probably merged instead of this, but the hl_group update one also needs to update lua/noice/integrations/fzf.lua
Figured I'd submit this to bump visibility of the issue.

Related Issue(s)

#1029
#1024