Small update to filter class

The image results page seems to have different formatting from non-image
results pages. Should probably revisit this at some point and try to
style the image results page to be more in line with other result types.

app/filter.py

@@ -52,9 +52,11 @@ class Filter:
             logo['style'] = 'display:flex; justify-content:center; align-items:center; color:#685e79; font-size:18px;'
 
         # Fix search bar length on mobile
-        if self.mobile:
+        try:
             search_bar = soup.find('header').find('form').find('div')
             search_bar['style'] = 'width: 100%;'
+        except AttributeError:
+            pass
 
         # Replace hrefs with only the intended destination (no "utm" type tags)
         for a in soup.find_all('a', href=True):