nvim: re-arrange treesitter config

.config/nvim/lua/fileformats.lua

@@ -4,6 +4,15 @@ packer.use {
     'https://github.com/nvim-treesitter/nvim-treesitter',
     run = function()
         require('nvim-treesitter.install').update({ with_sync = true })
+    end,
+    config = function()
+        require'nvim-treesitter.configs'.setup {
+            highlight = {
+                enable = true,
+                additional_vim_regex_highlighting = {'org'}
+            },
+            ensure_installed = {'org'},
+        }
     end
 }
 
@@ -14,12 +23,6 @@ packer.use {
     config = function()
         require('orgmode').setup{}
         require('orgmode').setup_ts_grammar()
-        require'nvim-treesitter.configs'.setup {
+    end,
-            highlight = {
+    ft = 'org'
-                enable = true,
-                additional_vim_regex_highlighting = {'org'}
-            },
-            ensure_installed = {'org'},
-        }
-    end
 }