feat: Vite + vue 3 💚 (#10047)

Fixes https://github.com/chatwoot/chatwoot/issues/8436
Fixes https://github.com/chatwoot/chatwoot/issues/9767
Fixes https://github.com/chatwoot/chatwoot/issues/10156
Fixes https://github.com/chatwoot/chatwoot/issues/6031
Fixes https://github.com/chatwoot/chatwoot/issues/5696
Fixes https://github.com/chatwoot/chatwoot/issues/9250
Fixes https://github.com/chatwoot/chatwoot/issues/9762

---------

Co-authored-by: Pranav <pranavrajs@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/widget/components/dropdown/DropdownMenu.vue

@@ -28,7 +28,7 @@ export default {
   mounted() {
     document.addEventListener('keydown', this.onEscape);
   },
-  beforeDestroy() {
+  unmounted() {
     document.removeEventListener('keydown', this.onEscape);
   },
   methods: {
@@ -76,7 +76,7 @@ export default {
 </template>
 
 <style scoped lang="scss">
-@import '~widget/assets/scss/variables.scss';
+@import 'widget/assets/scss/variables.scss';
 
 .menu-content {
   width: max-content;