Only create ip card if main result div is found

The ip address card that is created for searches like "my ip" only needs
to be created/inserted if a main result div id is found.

Fixes #735

app/utils/results.py

@@ -227,6 +227,8 @@ def add_ip_card(html_soup: BeautifulSoup, ip: str) -> BeautifulSoup:
         BeautifulSoup
 
     """
+    main_div = html_soup.select_one('#main')
+    if main_div:
         # HTML IP card tag
         ip_tag = html_soup.new_tag('div')
         ip_tag['class'] = 'ZINbbc xpd O9g5cc uUPGi'
@@ -246,7 +248,7 @@ def add_ip_card(html_soup: BeautifulSoup, ip: str) -> BeautifulSoup:
         ip_tag.append(ip_text)
 
         # Insert the element at the top of the result list
-    html_soup.select_one('#main').insert_before(ip_tag)
+        main_div.insert_before(ip_tag)
     return html_soup