GIF: fix type errors

public/gif/constants.js

@@ -1,7 +1,7 @@
 // @ts-check
 
 /** @enum {string} */
-const types = [
+export const GifNodeType = [
   "root",
 
   "header",
@@ -49,14 +49,3 @@ const types = [
   result[id] = id;
   return result;
 }, Object.create(null));
-
-// TODO: Revert this and just export the thing
-export const GifNodeType = new Proxy(types, {
-  get(target, prop) {
-    const result = target[prop];
-    if (!result) {
-      throw new Error(`cannot get ${String(prop)}`);
-    }
-    return result;
-  },
-});

public/gif/getNodeUi.js

@@ -220,6 +220,7 @@ const NODE_UI_FNS = {
   // Local color table
 
   [GifNodeType.localColorTable]: ({ children }) => ({
+    title: "Local Color Table",
     description: p(
       `The Local Color Table is a list of colors for this frame. Each color is encoded as three bytes: one for red, one for green, and one for blue. The number of colors in the table is ${
         pluralize(children?.length || 0, "color")