[nvim] Update LSP and completion

.config/nvim/lua/plugins/cmp.lua

@@ -22,7 +22,7 @@ return {
             api_key = 'TERM',
             name = 'Llama.cpp',
             end_point = 'http://localhost:1234/v1/completions',
-            model = 'qwen/qwen2.5-coder-14b',
+            model = 'qwen2.5-coder-7b-instruct',
             optional = {
               max_tokens = 56,
               top_p = 0.9,