chore(fmt): Finally let's use stylua

Hoping it's as good as go-fmt

lua/outline/hover.lua

@@ -1,5 +1,5 @@
-local outline = require 'outline'
-local cfg = require 'outline.config'
+local cfg = require('outline.config')
+local outline = require('outline')
 local util = vim.lsp.util
 
 local M = {}
@@ -31,9 +31,7 @@ function M.show_hover()
       if not (result and result.contents) then
         return
       end
-      local markdown_lines = util.convert_input_to_markdown_lines(
-        result.contents
-      )
+      local markdown_lines = util.convert_input_to_markdown_lines(result.contents)
       markdown_lines = util.trim_empty_lines(markdown_lines)
       if vim.tbl_isempty(markdown_lines) then
         return