refactor nvim: 判定GUI Terminal 模組化

dot_config/nvim/exact_lua/exact_plugins/exact_ui/scroll.lua

@@ -1,20 +1,7 @@
 return {
   -- { "psliwka/vim-smoothie" },
   { "karb94/neoscroll.nvim",
-    cond = function()
-      -- 如果是在 GUI（如 NeoVide、Goneovim）中，則不啟用插件
-      if vim.g.neovide or vim.fn.has("goneovim") == 1 or vim.fn.has("gui_running") == 1 then
-        return false
-      end
-
-      -- 獲取 TERM 環境變數
-      local term = vim.fn.getenv("TERM")
-      -- 檢查是否是常見的文字終端
-      local is_terminal = term and (term:match("xterm") or term:match("screen") or term:match("tmux") or term:match("linux"))
-
-      -- 如果是文字終端，則啟用插件
-      return is_terminal ~= nil
-    end,
+    cond = require("tools.gui").is_enable_sixel(),
     opts = {
       mappings = {                 -- Keys to be mapped to their corresponding default scrolling animation
         '<C-u>', '<C-d>',