Prevent overwriting the global taf object

src/utils/globalTaf.mjs

@@ -1,11 +1,18 @@
 import { hideMessageText } from "./feature_flags/rollModeMessageContent.mjs";
 
-globalThis.taf = Object.freeze({
+Object.defineProperty(
-	utils: Object.freeze({
+	globalThis,
-		hideMessageText,
+	`taf`,
-	}),
+	{
-	FEATURES: {
+		value: Object.freeze({
-		ROLL_MODE_CONTENT: false,
+			utils: Object.freeze({
-		STORABLE_SHEET_SIZE: false,
+				hideMessageText,
+			}),
+			FEATURES: Object.preventExtensions({
+				ROLL_MODE_CONTENT: false,
+				STORABLE_SHEET_SIZE: false,
+			}),
+		}),
+		writable: false,
 	},
-});
+);