moved `couldhave` into METASP coming from hugo's metadata/index.js

also Escape goes one page back to the original page edit page tries to edit

src/App.svelte

@@ -2,7 +2,7 @@
  import { onMount } from 'svelte';
  let v = "loading...";
  let path = "loading...";
- var couldhave = []
+ let couldhave = []
 
  function disableButtons() {
    let tierbox = [...document.querySelector(".tierbox").children]
@@ -186,14 +186,20 @@
        v = v.substring(1)
      }
      path = repo.path;
-     couldhave = repo.couldhave;
+     couldhave = METASP[Object.keys(repo.frontmatter).filter(t => t.startsWith("has_"))[0].split("has_")[1]].tiers
      console.log(JSON.stringify(repo))
-     generateFrontMatter(repo.frontmatter, path, repo.relpermalink,  document.location.protocol.substring(0,4))
+     generateFrontMatter(repo.frontmatter, path, repo.relpermalink, document.location.protocol.substring(0,4))
    }
    el.src = `../js/repo/${location.hash.substring(1)}.js`
    document.body.appendChild(el) 
  }
 
+ function keyUp(e) {
+   if (e.key == "Escape") {
+     window.history.back()
+   }
+ }
+
  onMount(()=> {
    dispatchHash()
  })
@@ -201,7 +207,7 @@
  $: hashChanged = ()=> dispatchHash();
 </script>
 
-<svelte:window on:hashchange={hashChanged} />
+<svelte:window on:hashchange={hashChanged} on:keyup={keyUp}/>
 <main id="sandpoints">
   <form>
     <label for="content">Content:</label>