feat: add contextual help and stabilize repository layout

src/renderer/app.js

@@ -59,6 +59,8 @@ const icons = {
     '<path d="M21 12a9 9 0 0 1-15.3 6.4L3 16"/><path d="M3 21v-5h5"/><path d="M3 12A9 9 0 0 1 18.3 5.6L21 8"/><path d="M21 3v5h-5"/>',
   wrench:
     '<path d="M14.7 6.3a4 4 0 0 0-5-5l2.1 2.1-2.8 2.8-2.1-2.1a4 4 0 0 0 5 5L20 17.2 17.2 20l-8.1-8.1a4 4 0 0 0-5-5l2.1 2.1-2.8 2.8-2.1-2.1a4 4 0 0 0 5 5"/>',
+  help:
+    '<circle cx="12" cy="12" r="9"/><path d="M9.7 9a2.5 2.5 0 1 1 3.8 2.1c-.9.5-1.5 1.1-1.5 2.4M12 17.5h.01"/>',
 };
 
 function icon(name, className = "") {
@@ -183,6 +185,8 @@ const ui = {
   deploymentTruthPromise: null,
   deploymentTruthRequest: null,
   paletteQuery: "",
+  helpQuery: "",
+  helpTopic: "getting-started",
   updateStatus: null,
   updateChecking: false,
   servers: [],