refactor: replaces arrays and objects with sets and maps

... where this helps in readability (and maybe a bit in security and performance)

Author: sverweij

dist/cli/normalize.mjs

@@ -61,7 +61,7 @@
   <meta property="og:image:type" content="image/png" />
   <link rel="canonical" href="https://state-machine-cat.js.org">
   <script nonce="known-inline-script">let LOG = false;</script>
-  <script src="interpreter/smcat-online-interpreter.js" type="module" defer integrity="sha512-Sd3BL7QXRLTuiiWhbB/1HCwDYFFpVcu3Je5+IwBKXuFBX2ZWNA56hEGcdN6tT7JVd9xV3NpnU2fKcBYsKi9o2w=="></script>
+  <script src="interpreter/smcat-online-interpreter.js" type="module" defer integrity="sha512-SkWew7mbCSPe5wZKtDneWNv7ZAvrZM2PQ79VtlmeSqEKqdGtVSn5mA7BJ7k5C5WSqTnGvFSrIunsTFpXHfxVAA=="></script>
   <script defer src="./vendor/material.min.js" integrity="sha512-9p3qCAKlef9K+szKNCvO5wULH5EF1+RVMEYUVl9mTeWBZX4cO4w4yUi5k2g/40R7VU/IZI99b8qZjJEZKyUTAQ==" async></script>
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <meta name="theme-color" content="purple">

dist/render/dot/utl.mjs

@@ -23,7 +23,7 @@
       src="state-machine-cat-inpage.min.js"
       type="module"
       defer
-      integrity="sha512-8pydI+1Yqwjni3p/nftxHj0q5J0fF71KqIXQv2KzX9lTvD3UrZt+eTd/UO4q6PD8QHbDpWiwq9Y1Fxmnk9eDjg=="
+      integrity="sha512-Iv/oWYhepEL4eoGpSIR6VlM7k7GPOTcQYyxTmX5YpgFfWnsS8hSzr+Zl8XV/BVLvSQ4UXrPmmZQ5i3sC18QjAQ=="
     ></script>
     <style
     >