feat: Creates add button component for label (#2223)

app/javascript/shared/components/ui/dropdown/AddLabel.vue

@@ -0,0 +1,25 @@
+<template>
+  <div>
+    <woot-button
+      variant="hollow"
+      size="tiny"
+      icon="ion-plus-round"
+      color-scheme="secondary"
+      @click="toggleLabels"
+    >
+      {{ $t('CONTACT_PANEL.LABELS.MODAL.ADD_BUTTON') }}
+    </woot-button>
+  </div>
+</template>
+
+<script>
+export default {
+  methods: {
+    toggleLabels() {
+      this.$emit('add');
+    },
+  },
+};
+</script>
+
+<style lang="scss" scoped></style>