chore(fmt): Finally let's use stylua

Hoping it's as good as go-fmt

lua/outline/utils/table.lua

@@ -28,14 +28,13 @@ function M.array_copy(t)
   return ret
 end
 
-
 --- Deep copy a table, deeply excluding certain keys
 function M.deepcopy_excluding(t, keys)
   local res = {}
-    
+
   for key, value in pairs(t) do
     if not vim.tbl_contains(keys, key) then
-      if type(value) == "table" then
+      if type(value) == 'table' then
         res[key] = M.deepcopy_excluding(value, keys)
       else
         res[key] = value