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

extensions/cornerstone/src/commandsModule.js

@@ -242,6 +242,18 @@ const commandsModule = ({ servicesManager }) => {
     setCornerstoneLayout: () => {
       setCornerstoneLayout();
     },
+    setWindowLevel: ({ viewports, window, level }) => {
+      const enabledElement = getEnabledElement(viewports.activeViewportIndex);
+
+      if (enabledElement) {
+        let viewport = cornerstone.getViewport(enabledElement);
+        viewport.voi = {
+          windowWidth: Number(window),
+          windowCenter: Number(level),
+        };
+        cornerstone.setViewport(enabledElement, viewport);
+      }
+    },
   };
 
   const definitions = {
@@ -347,6 +359,11 @@ const commandsModule = ({ servicesManager }) => {
       options: {},
       context: 'VIEWER',
     },
+    setWindowLevel: {
+      commandFn: actions.setWindowLevel,
+      storeContexts: ['viewports'],
+      options: {},
+    },
   };
 
   return {