Refactor everything that's used all over into a common/ package and sync files from static/ into public/ so that public's not in the git.

static/js/code.js

@@ -0,0 +1,21 @@
+
+class GetJson {
+  constructor(url) {
+    this.url = url;
+    this.items = [];
+    this.item = undefined;
+  }
+
+  async theData() {
+    const resp = await fetch(this.url);
+    console.assert(resp.status == 200, "failed to get it");
+    this.items = await resp.json();
+    return this.items;
+  }
+
+  async oneThing() {
+    this.item = await this.theData();
+    console.log("ITEMS", this.items);
+    return this.item;
+  }
+}