More graceful browsing error handling (#3494)

tests/unit/test_web_selenium.py

@@ -0,0 +1,11 @@
+from autogpt.commands.web_selenium import browse_website
+
+
+def test_browse_website():
+    url = "https://barrel-roll.com"
+    question = "How to execute a barrel roll"
+
+    response, _ = browse_website(url, question)
+    assert "Error" in response
+    # Sanity check that the response is not too long
+    assert len(response) < 200