Removed dots on actual lines

src/components/graph-cases.tsx

@@ -83,6 +83,8 @@ const GraphCases: React.FC<Props> = ({ countries }) => {
             dataKey={`value.${country}`}
             stroke={color}
             yAxisId="left"
+            dot={false}
+            strokeWidth={2}
           />
         ))}
         {countries.map(({ country, color }) => (