Fix excessive highlighting on hover

It fixes whitespace on left when being highlighted when hovering on macOS (OS selection button on top)
The commit also unifies the way top menu buttons are displayed by reusing `MenuOptionListItem`s (renamed from `SelectableOption`) and `MenuOptionList`. This ensures right and consistent behavior.
Finally it fixes `enabled` property in menu option setting disabled state instead.

src/presentation/components/Scripts/Menu/MenuOptionListItem.vue

@@ -0,0 +1,37 @@
+<template>
+    <span> <!-- Parent wrapper allows adding content inside with CSS without making it clickable -->
+        <span
+            v-bind:class="{ 'disabled': !enabled, 'enabled': enabled}"
+            v-non-collapsing
+            @click="enabled && onClicked()">{{label}}</span>
+    </span>
+</template>
+
+<script lang="ts">
+import { Component, Prop, Emit, Vue } from 'vue-property-decorator';
+import { NonCollapsing } from '@/presentation/components/Scripts/Cards/NonCollapsingDirective';
+
+@Component({
+    directives: { NonCollapsing },
+})
+export default class MenuOptionListItem extends Vue {
+  @Prop() public enabled: boolean;
+  @Prop() public label: string;
+  @Emit('click') public onClicked() { return; }
+}
+</script>
+
+<style scoped lang="scss">
+@import "@/presentation/styles/colors.scss";
+
+.enabled {
+    cursor: pointer;
+    &:hover {
+        font-weight:bold;
+        text-decoration:underline;
+    }
+}
+.disabled {
+    color:$gray;
+}
+</style>