Only remove G links in footer

Links that were directed at G domains were previously removed
universally, when really they only needed to be removed from the footer
to reduce possible confusion caused by mixed Whoogle and G links.

Fixes #656

app/filter.py

@@ -349,7 +349,12 @@ class Filter:
         if any(url in link['href'] for url in unsupported_g_pages):
             # FIXME: The "Shopping" tab requires further filtering (see #136)
             # Temporarily removing all links to that tab for now.
+            parent = link.parent
+            while parent:
+                p_cls = parent.attrs.get('class') or []
+                if parent.name == 'footer' or f'{GClasses.footer}' in p_cls:
                     link.decompose()
+                parent = parent.parent
             return
 
         # Replace href with only the intended destination (no "utm" type tags)

app/models/g_classes.py

@@ -11,6 +11,7 @@ class GClasses(Enum):
     """
     main_tbm_tab = 'KP7LCb'
     images_tbm_tab = 'n692Zd'
+    footer = 'TuS8Ad'
 
     def __str__(self):
         return self.value