feat(nvim): set dockerignore fts to gitignore

dots/.nvim-environments/primary/config/lua/core/filetypes.lua

@@ -4,6 +4,7 @@ M.setup = function()
     vim.filetype.add({
         pattern = {
             [".*%.dockerfile"] = "dockerfile",
+            [".*%.dockerignore"] = "gitignore"
         },
     })
 end