feat: Integrated tab UI updates (#8516)

## Summary
Next iteration of the integrated tab/top menu

## Changes
- **What**:  
- make integrated default, rename old to legacy
- move feedback to integrated
- fix user icon shapes
- remove comfy cloud text in top bar, move to canvas stats
- add chevron to C logo menu
- move help back to sidebar
   - remove now unused help top positioning code

## Screenshots (if applicable)
<img width="428" height="148" alt="image"
src="https://github.com/user-attachments/assets/725025b7-4982-4f61-be11-8aabb0a1faff"
/>
<img width="264" height="187" alt="image"
src="https://github.com/user-attachments/assets/91fa5e92-df08-4467-9bc5-50a614d9b8aa"
/>
<img width="1169" height="220" alt="image"
src="https://github.com/user-attachments/assets/68c81bea-0cff-48df-8303-a6231a1d2fc4"
/>
<img width="242" height="207" alt="image"
src="https://github.com/user-attachments/assets/5a10f40e-83ae-44c3-9434-3dbe87ba30e2"
/>
<img width="302" height="222" alt="image"
src="https://github.com/user-attachments/assets/27fcc638-5fff-4302-9a1f-066227aafd86"
/>

---------

Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: github-actions <github-actions@github.com>

src/components/TopMenuSection.test.ts

@@ -166,13 +166,22 @@ describe('TopMenuSection', () => {
   })
 
   describe('authentication state', () => {
+    function createLegacyTabBarWrapper() {
+      const pinia = createTestingPinia({ createSpy: vi.fn })
+      const settingStore = useSettingStore(pinia)
+      vi.mocked(settingStore.get).mockImplementation((key) =>
+        key === 'Comfy.UI.TabBarLayout' ? 'Legacy' : undefined
+      )
+      return createWrapper({ pinia })
+    }
+
     describe('when user is logged in', () => {
       beforeEach(() => {
         mockData.isLoggedIn = true
       })
 
       it('should display CurrentUserButton and not display LoginButton', () => {
-        const wrapper = createWrapper()
+        const wrapper = createLegacyTabBarWrapper()
         expect(wrapper.findComponent(CurrentUserButton).exists()).toBe(true)
         expect(wrapper.findComponent(LoginButton).exists()).toBe(false)
       })
@@ -186,7 +195,7 @@ describe('TopMenuSection', () => {
       describe('on desktop platform', () => {
         it('should display LoginButton and not display CurrentUserButton', () => {
           mockData.isDesktop = true
-          const wrapper = createWrapper()
+          const wrapper = createLegacyTabBarWrapper()
           expect(wrapper.findComponent(LoginButton).exists()).toBe(true)
           expect(wrapper.findComponent(CurrentUserButton).exists()).toBe(false)
         })
@@ -194,7 +203,7 @@ describe('TopMenuSection', () => {
 
       describe('on web platform', () => {
         it('should not display CurrentUserButton and not display LoginButton', () => {
-          const wrapper = createWrapper()
+          const wrapper = createLegacyTabBarWrapper()
           expect(wrapper.findComponent(CurrentUserButton).exists()).toBe(false)
           expect(wrapper.findComponent(LoginButton).exists()).toBe(false)
         })