reformat cmp sources

lua/plugins/cmp.lua

@@ -78,12 +78,15 @@ cmp.setup({
         -- Set `select` to `false` to only confirm explicitly selected items.
         ['<CR>'] = cmp.mapping.confirm({ select = false }),
     }),
-    sources = cmp.config.sources({
+    sources = cmp.config.sources(
+        {
             { name = 'nvim_lsp' },
             { name = 'luasnip' },
-    }, {
+        },
+        {
             { name = 'buffer' },
-    })
+        }
+    )
 })
 
 -- Set configuration for specific filetype.