Hide overflow on all result divs

Mostly addresses the small amount of visible overflow on sections like
"Top Stories".

app/static/css/dark-theme.css

@@ -58,6 +58,7 @@ select {
 }
 
 .ZINbbc {
+    overflow: hidden;
     background-color: var(--whoogle-dark-result-bg) !important;   
 }
 

app/static/css/light-theme.css

@@ -33,6 +33,7 @@ select {
 }
 
 .ZINbbc {
+    overflow: hidden;
     background-color: var(--whoogle-result-bg) !important;   
 }