Restore tab index for linkless nav elements

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@fwdekker/template",
-    "version": "3.3.8",
+    "version": "3.3.9",
     "description": "The base template for pages on fwdekker.com.",
     "author": "Florine W. Dekker",
     "license": "MIT",

src/main/js/Template.ts

@@ -134,6 +134,7 @@ function unpackEntry(entry: any, parentPath: string = "/", highlightPath?: strin
 
     const a = document.createElement("a");
     a.innerText = entry.name;
+    a.tabIndex = 0;
     if (hasChildren) {
         const depth = parentPath.split("/").length - 2;  // -1 because count parts, then another -1 because of leading /
         a.innerText += ` ${depth === 0 ? "▾" : "▸"}`;