MM-60782 - use default download directory on windows (#3161)

* MM-60782 - use default download directory on windows

* fix unit tests

src/main/views/MattermostBrowserView.test.js

@@ -17,6 +17,7 @@ import MainWindow from '../windows/mainWindow';
 jest.mock('electron', () => ({
     app: {
         getVersion: () => '5.0.0',
+        getPath: jest.fn(() => '/valid/downloads/path'),
     },
     BrowserView: jest.fn().mockImplementation(() => ({
         webContents: {

src/main/views/downloadsDropdownMenuView.test.js

@@ -28,6 +28,7 @@ jest.mock('electron', () => {
     return {
         app: {
             getAppPath: () => '',
+            getPath: jest.fn(() => '/valid/downloads/path'),
         },
         BrowserView: jest.fn().mockImplementation(() => ({
             webContents: {

src/main/views/downloadsDropdownView.test.js

@@ -36,6 +36,7 @@ jest.mock('electron', () => {
     return {
         app: {
             getAppPath: () => '',
+            getPath: jest.fn(() => '/valid/downloads/path'),
         },
         BrowserView: jest.fn().mockImplementation(() => ({
             webContents: {

src/main/views/serverDropdownView.test.js

@@ -25,6 +25,9 @@ jest.mock('electron', () => ({
     ipcMain: {
         on: jest.fn(),
     },
+    app: {
+        getPath: jest.fn(() => '/valid/downloads/path'),
+    },
 }));
 jest.mock('main/windows/mainWindow', () => ({
     on: jest.fn(),

src/main/views/viewManager.test.js

@@ -18,6 +18,7 @@ import {ViewManager} from './viewManager';
 jest.mock('electron', () => ({
     app: {
         getAppPath: () => '/path/to/app',
+        getPath: jest.fn(() => '/valid/downloads/path'),
     },
     dialog: {
         showErrorBox: jest.fn(),