Rename external *.js files to *.min.js to mark them as vendored

- Excludes from Github language stats.
  See linguists/vendor.yml for exclusion rules
- Signifies them as external for Khoj developers too

src/interface/web/index.html

@@ -8,8 +8,8 @@
         <link rel="icon" type="image/png" sizes="144x144" href="/static/assets/icons/favicon-144x144.png">
         <link rel="manifest" href="/static/khoj.webmanifest">
     </head>
-    <script type="text/javascript" src="static/assets/org.js"></script>
-    <script type="text/javascript" src="static/assets/markdown-it.js"></script>
+    <script type="text/javascript" src="static/assets/org.min.js"></script>
+    <script type="text/javascript" src="static/assets/markdown-it.min.js"></script>
 
     <script>
         function render_image(item) {