chore: Upgrade vue-i18n to 8.x (#1383)

Co-authored-by: Pranav Raj S <pranav@thoughtwoot.com>

app/javascript/widget/api/specs/endPoints.spec.js

@@ -1,14 +1,26 @@
 import endPoints from '../endPoints';
 
-jest.mock('vue', () => ({ config: { lang: 'ar' } }));
-
 describe('#sendMessage', () => {
   it('returns correct payload', () => {
     const spy = jest.spyOn(global, 'Date').mockImplementation(() => ({
       toString: () => 'mock date',
     }));
+    const windowSpy = jest.spyOn(window, 'window', 'get');
+    windowSpy.mockImplementation(() => ({
+      WOOT_WIDGET: {
+        $root: {
+          $i18n: {
+            locale: 'ar',
+          },
+        },
+      },
+      location: {
+        search: '?param=1',
+      },
+    }));
+
     expect(endPoints.sendMessage('hello')).toEqual({
-      url: `/api/v1/widget/messages?locale=ar`,
+      url: `/api/v1/widget/messages?param=1&locale=ar`,
       params: {
         message: {
           content: 'hello',
@@ -17,6 +29,7 @@ describe('#sendMessage', () => {
         },
       },
     });
+    windowSpy.mockRestore();
     spy.mockRestore();
   });
 });