feat: #1342 - Window level tab (#1429)

* WindowLevel preset code changes

* Remove localStorage code as its already being saved and some small refactor on reducer/action

* Creating unit tests for preferences reducer

* Fix cypress after class naming change

* Make hidden false as default for tab components

* Remove addUserPreferences

* Small refactor to use commandsManager from getCommandsModule instead of getting it from App.js

platform/viewer/cypress/integration/common/OHIFUserPreferences.spec.js

@@ -419,7 +419,7 @@ describe('OHIF User Preferences', () => {
       cy.get('.HotkeysPreferences').within(() => {
         cy.contains('Rotate Right') // label we're looking for
           .parent()
-          .find('.errorMessage')
+          .find('.preferencesInputErrorMessage')
           .as('errorMsg')
           .should('have.text', '"Invert" is already using the "i" shortcut.');
       });
@@ -440,7 +440,7 @@ describe('OHIF User Preferences', () => {
       cy.get('.HotkeysPreferences').within(() => {
         cy.contains('Rotate Right') // label we're looking for
           .parent()
-          .find('.errorMessage')
+          .find('.preferencesInputErrorMessage')
           .as('errorMsg')
           .should('have.text', '"ctrl+z" shortcut combination is not allowed');
       });
@@ -461,7 +461,7 @@ describe('OHIF User Preferences', () => {
       cy.get('.HotkeysPreferences').within(() => {
         cy.contains('Zoom Out') // label we're looking for
           .parent()
-          .find('.errorMessage')
+          .find('.preferencesInputErrorMessage')
           .as('errorMsg')
           .should(
             'have.text',