Add Hidebar Sider script

hidebar_sider.js

@@ -0,0 +1,20 @@
+// ==UserScript==
+// @name     Hidebar Sider
+// @description Hides the "Recommended videos" sidebar on Invidious instances.
+// @version  1
+// @grant    none
+// @include  http*
+// ==/UserScript==
+
+let recommendedSidebarXpath = "/html/body/div/div/div[5]/div[3]";
+let recommendedSidebar = document.evaluate(
+  recommendedSidebarXpath,
+  document,
+  null,
+  XPathResult.FIRST_ORDERED_NODE_TYPE,
+  null,
+).singleNodeValue;
+
+if (recommendedSidebar != null) {
+  recommendedSidebar.setAttribute("hidden", true);
+}