feat: Remove ionicons v2 dependency on widget (#3402)

app/javascript/widget/components/template/EmailInput.vue

@@ -3,7 +3,7 @@
     <form
       v-if="!hasSubmitted"
       class="email-input-group"
-      @submit.prevent="onSubmit()"
+      @submit.prevent="onSubmit"
     >
       <input
         v-model.trim="email"
@@ -14,12 +14,12 @@
         @keyup.enter="onSubmit"
       />
       <button
-        class="button"
+        class="button small"
         :disabled="$v.email.$invalid"
         :style="{ background: widgetColor, borderColor: widgetColor }"
       >
-        <i v-if="!isUpdating" class="ion-ios-arrow-forward" />
-        <spinner v-else />
+        <fluent-icon v-if="!isUpdating" icon="chevron-right" />
+        <spinner v-else class="mx-2" />
       </button>
     </form>
   </div>
@@ -27,11 +27,14 @@
 
 <script>
 import { mapGetters } from 'vuex';
-import Spinner from 'shared/components/Spinner';
 import { required, email } from 'vuelidate/lib/validators';
 
+import FluentIcon from 'shared/components/FluentIcon/Index.vue';
+import Spinner from 'shared/components/Spinner';
+
 export default {
   components: {
+    FluentIcon,
     Spinner,
   },
   props: {