Source genre sorts design (#147)

design thing to copy tachiyomi 1 to 1
(only a slight functional change nothing screenshot-able)
(clicking a new sort always sets to ascending)

src/components/source/filters/SortFilter.tsx

@@ -48,8 +48,12 @@ export default function SortFilter(props: Props) {
         const handleChange = (event:
         React.MouseEvent<HTMLDivElement, MouseEvent>, index: number) => {
             const tmp = val;
+            if (tmp.index === index) {
+                tmp.ascending = !tmp.ascending;
+            } else {
+                tmp.ascending = true;
+            }
             tmp.index = index;
-            tmp.ascending = !tmp.ascending;
             setval(tmp);
             updateFilterValue({ position, state: JSON.stringify(tmp), group });
         };