fix: minor bugs

data/elements.txt

@@ -12509,4 +12509,4 @@ body > .page-container > .flex > #header > aside.bg-light.color-main.full-width.
 .zbottom-cookie-container-outer
 module-rgpd-component
 .consent.consent__side--right-bottom
-iframe[src="https://www.tumblr.com/dashboard/iframe/consent"]
+iframe[src="https://www.tumblr.com/dashboard/iframe/consent"]

scripts/content.js

@@ -60,7 +60,7 @@ const check = (node) =>
   node instanceof HTMLElement &&
   node.parentElement &&
   !["BODY", "HTML"].includes(node.tagName) &&
-  !(node.id && ["APP", "ROOT"].includes(node.id.toUpperCase()));
+  !(node.id && ["APP", "ROOT"].includes(node.id.toUpperCase?.()));
 
 /**
  * @description Cleans DOM