refactor: Move should refresh logic to utils

lua/symbols-outline.lua

@@ -56,8 +56,7 @@ local function __refresh ()
             end
 
             local current_buf = vim.api.nvim_get_current_buf()
-            if (not lsp_utils.is_buf_markdown(current_buf)) and
-                (not lsp_utils.is_buf_attached_to_lsp(current_buf)) then
+            if lsp_utils.should_not_refresh(current_buf) then
                 return
             end
 

lua/symbols-outline/utils/lsp_utils.lua

@@ -11,4 +11,13 @@ function M.is_buf_markdown(bufnr)
     return vim.api.nvim_buf_get_option(bufnr, 'ft') == 'markdown'
 end
 
+---@param bufnr number
+---@return boolean
+function M.should_not_refresh(bufnr)
+    if (not M.is_buf_markdown(bufnr)) and (not M.is_buf_attached_to_lsp(bufnr)) then
+        return true
+    end
+    return false
+end
+
 return M