show a scroll in the option menu

Author: AEtheve

electron_app/src/components_bare/SDOptionsDropdown.vue

@@ -303,6 +303,15 @@ export default {
 }
 </script>
 <style scoped>
+.b-dropdown ::-webkit-scrollbar {
+    appearance: none;
+    width: 7px;
+}
+.b-dropdown ::-webkit-scrollbar-thumb {
+    border-radius: 4px;
+    background-color: rgba(0, 0, 0, .5);
+    box-shadow: 0 0 1px rgba(255, 255, 255, .5);
+}
 .options_title {
     display: flex;
     flex-direction: row;