fix: attempt completion (#2091)

lua/avante/llm_tools/view.lua

@@ -94,7 +94,7 @@ function M.func(opts, on_log, on_complete, session_ctx)
   local size = 0
   for _, line in ipairs(lines or {}) do
     size = size + #line
-    if size > 1024 * 10 then
+    if size > 2048 * 10 then
       is_truncated = true
       break
     end