[MM-50485] Migrate app to ServerManager, remove view names and replace with IDs (#2672)

* Migrate app to ServerManager, remove view names and replace with IDs

* Fixed a test

* Fixed a bug when adding the initial server

* Merge'd

* Bug fixes and PR feedback

src/main/app/config.test.js

@@ -28,7 +28,6 @@ jest.mock('electron', () => ({
 jest.mock('main/app/utils', () => ({
     handleUpdateMenuEvent: jest.fn(),
     updateSpellCheckerLocales: jest.fn(),
-    updateServerInfos: jest.fn(),
     setLoggingLevel: jest.fn(),
 }));
 jest.mock('main/app/intercom', () => ({
@@ -51,7 +50,6 @@ jest.mock('main/views/loadingScreen', () => ({}));
 jest.mock('main/windows/windowManager', () => ({
     handleUpdateConfig: jest.fn(),
     sendToRenderer: jest.fn(),
-    initializeCurrentServerName: jest.fn(),
 }));
 
 describe('main/app/config', () => {