update .gitignore and config.js for improved file management and updated Twitter link

Author: lcomplete

.gitignore

@@ -24,4 +24,6 @@ node_modules
 dist
 manifest
 .temp
-.obsidian
+.obsidian
+.specstory/
+**/.DS_Store

.vuepress/config.js

@@ -86,7 +86,7 @@ module.exports = {
     nav: [
       { text: "关于", link: "/about/" },
       { text: "博客", link: "https://codelc.com/" },
-      { text: "推特", link: "https://twitter.com/lcomplete_wild" },
+      { text: "推特", link: "https://x.com/xlcomplete" },
       { text: "邮箱订阅", link: "https://coolc.substack.com/" },
       { text: "RSS 订阅", link: "https://tech.codelc.com/rss.xml" },
       { text: "GitHub", link: "https://github.com/lcomplete/TechShare" },