Floating Menus - UI rework (#5980)

## Summary

Enhancing and further modernizing the UI, giving users more usable area
whilst keeping farmiliar positioning and feel of elements.

## Changes

- **What**: Significant restructure of the UI elements, changing
elements from large blocks to floating elements, updating:
- Side toolbar menu (floating style, supports small/normal mode,
combines to scroll on height overflow)
- Bottom tabs panel (floating style, tabs redesigned)
- Action bar (support for docking/undocking menu)
    - Added login/user menu button to top right
- Restyled breadcrumbs (still collapse when overflows)
- Add litegraph support for fps info position (so it isn't covered by
the sidebar)

- **Breaking**: 
- Removed various elements and added new ones, I have tested custom
sidebars, custom actions, etc but if scripts are inserting elements into
"other" elements they may have been (re)moved.
- Remove support for bottom menu
- Remove support for 2nd-row tabs

## Screenshots 
<img width="1116" height="907" alt="ui"
src="https://github.com/user-attachments/assets/b040a215-67d3-4c88-8c4d-f402a16a34f6"
/>


https://github.com/user-attachments/assets/571dbda5-01ec-47e8-b235-ee1b88c93dd0

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5980-Floating-Menus-UI-rework-2866d73d3650810aac60cc1afe979b60)
by [Unito](https://www.unito.io)

---------

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

src/components/sidebar/SidebarHelpCenterIcon.vue

@@ -3,8 +3,10 @@
     <SidebarIcon
       icon="pi pi-question-circle"
       class="comfy-help-center-btn"
+      label="menu.help"
       :tooltip="$t('sideToolbar.helpCenter')"
       :icon-badge="shouldShowRedDot ? '•' : ''"
+      :is-small="isSmall"
       @click="toggleHelpCenter"
     />
 
@@ -16,7 +18,7 @@
         :class="{
           'sidebar-left': sidebarLocation === 'left',
           'sidebar-right': sidebarLocation === 'right',
-          'small-sidebar': sidebarSize === 'small'
+          'small-sidebar': isSmall
         }"
       >
         <HelpCenterMenuContent @close="closeHelpCenter" />
@@ -29,7 +31,7 @@
         :class="{
           'sidebar-left': sidebarLocation === 'left',
           'sidebar-right': sidebarLocation === 'right',
-          'small-sidebar': sidebarSize === 'small'
+          'small-sidebar': isSmall
         }"
       />
     </Teleport>
@@ -40,7 +42,7 @@
         :class="{
           'sidebar-left': sidebarLocation === 'left',
           'sidebar-right': sidebarLocation === 'right',
-          'small-sidebar': sidebarSize === 'small'
+          'small-sidebar': isSmall
         }"
         @whats-new-dismissed="handleWhatsNewDismissed"
       />
@@ -59,7 +61,7 @@
 
 <script setup lang="ts">
 import { storeToRefs } from 'pinia'
-import { computed, onMounted } from 'vue'
+import { computed, onMounted, toRefs } from 'vue'
 
 import HelpCenterMenuContent from '@/components/helpcenter/HelpCenterMenuContent.vue'
 import { useSettingStore } from '@/platform/settings/settingStore'
@@ -87,6 +89,11 @@ const { showNodeConflictDialog } = useDialogService()
 const { shouldShowRedDot: shouldShowConflictRedDot, markConflictsAsSeen } =
   useConflictAcknowledgment()
 
+const props = defineProps<{
+  isSmall: boolean
+}>()
+const { isSmall } = toRefs(props)
+
 // Use either release red dot or conflict red dot
 const shouldShowRedDot = computed((): boolean => {
   const releaseRedDot = showReleaseRedDot.value
@@ -97,8 +104,6 @@ const sidebarLocation = computed(() =>
   settingStore.get('Comfy.Sidebar.Location')
 )
 
-const sidebarSize = computed(() => settingStore.get('Comfy.Sidebar.Size'))
-
 const toggleHelpCenter = () => {
   helpCenterStore.toggle()
 }