chore: update asset paths and package dependencies

Author: kastov

.gitignore

@@ -145,4 +145,6 @@ public/main.wasm
 public/xray.schema.cn.json
 
 scripts
-scripts/**
+scripts/**
+
+public/assets/**

index.html

@@ -153,7 +153,7 @@
             rel="stylesheet"
         />
 
-        <script src="/wasm_exec.js"></script>
+        <script src="/assets/wasm_exec.js"></script>
 
         <meta name="color-scheme" content="dark only" />
         <meta name="theme-color" content="#161B23" />