fix(ui): make aria-pressed "true" when given as a prop to the Button component

front/src/components/ui/Button.vue

@@ -18,6 +18,7 @@ type Props = {
   onClick?: (...args: any[]) => void | Promise<void>
 
   autofocus? : boolean
+  ariaPressed? : true
 } & ColorProps & VariantProps
 
 const props = defineProps<Props>()
@@ -46,6 +47,7 @@ onMounted(() => {
 
 <template>
   <button ref="button"
+    :aria-pressed="props.ariaPressed"
     v-bind="propsToColor({...props, interactive:true})"
     class="funkwhale is-colored button"
     :class="[
@@ -132,7 +134,7 @@ onMounted(() => {
     }
 
     &.is-loading {
-      @extend .is-active;
+      @extend :active;
 
       > span {
         opacity: 0;