feat: Use vitest instead of jest, run all the specs anywhere in app/ folder in the CI (#9722)

Due to the pattern `**/specs/*.spec.js` defined in CircleCI, none of the
frontend spec in the folders such as
`specs/<domain-name>/getters.spec.js` were not executed in Circle CI.

This PR fixes the issue, along with the following changes: 
- Use vitest instead of jest
- Remove jest dependancies
- Update tests to work with vitest

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/mixins/specs/fileUploadMixin.spec.js

@@ -1,13 +1,13 @@
 import fileUploadMixin from 'dashboard/mixins/fileUploadMixin';
 import Vue from 'vue';
 
-jest.mock('shared/helpers/FileHelper', () => ({
-  checkFileSizeLimit: jest.fn(),
+vi.mock('shared/helpers/FileHelper', () => ({
+  checkFileSizeLimit: vi.fn(),
 }));
 
-jest.mock('activestorage', () => ({
-  DirectUpload: jest.fn().mockImplementation(() => ({
-    create: jest.fn(),
+vi.mock('activestorage', () => ({
+  DirectUpload: vi.fn().mockImplementation(() => ({
+    create: vi.fn(),
   })),
 }));
 
@@ -27,20 +27,20 @@ describe('FileUploadMixin', () => {
     vm.currentUser = {
       access_token: 'token',
     };
-    vm.$t = jest.fn(message => message);
-    vm.showAlert = jest.fn();
-    vm.attachFile = jest.fn();
+    vm.$t = vi.fn(message => message);
+    vm.showAlert = vi.fn();
+    vm.attachFile = vi.fn();
   });
 
   it('should call onDirectFileUpload when direct uploads are enabled', () => {
-    vm.onDirectFileUpload = jest.fn();
+    vm.onDirectFileUpload = vi.fn();
     vm.onFileUpload({});
     expect(vm.onDirectFileUpload).toHaveBeenCalledWith({});
   });
 
   it('should call onIndirectFileUpload when direct uploads are disabled', () => {
     vm.globalConfig.directUploadsEnabled = false;
-    vm.onIndirectFileUpload = jest.fn();
+    vm.onIndirectFileUpload = vi.fn();
     vm.onFileUpload({});
     expect(vm.onIndirectFileUpload).toHaveBeenCalledWith({});
   });
@@ -53,7 +53,7 @@ describe('FileUploadMixin', () => {
 
     it('shows an alert if the file size exceeds the maximum limit', () => {
       const fakeFile = { size: 999999999 };
-      vm.showAlert = jest.fn();
+      vm.showAlert = vi.fn();
       vm.onDirectFileUpload(fakeFile);
       expect(vm.showAlert).toHaveBeenCalledWith(expect.any(String));
     });
@@ -67,7 +67,7 @@ describe('FileUploadMixin', () => {
 
     it('shows an alert if the file size exceeds the maximum limit', () => {
       const fakeFile = { size: 999999999 };
-      vm.showAlert = jest.fn();
+      vm.showAlert = vi.fn();
       vm.onIndirectFileUpload(fakeFile);
       expect(vm.showAlert).toHaveBeenCalledWith(expect.any(String));
     });