App mode - more updates & fixes (#9137)

## Summary

- fix sizing of sidebars in app mode
- update feedback button to match design
- update job queue notification
- clickable queue spinner item to allow clear queue
- refactor mode out of store to specific workflow instance
- support different saved vs active mode
- other styling/layout tweaks

## Changes

- **What**: Changes the store to a composable and moves the mode state
to the workflow.
- This enables switching between tabs and maintaining the mode they were
in

## Screenshots (if applicable)
<img width="1866" height="1455" alt="image"
src="https://github.com/user-attachments/assets/f9a8cd36-181f-4948-b48c-dd27bd9127cf"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9137-App-mode-more-updates-fixes-3106d73d365081a18ccff6ffe24fdec7)
by [Unito](https://www.unito.io)

---------

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

src/components/LiteGraphCanvasSplitterOverlay.vue

@@ -124,7 +124,7 @@ import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import { useSettingStore } from '@/platform/settings/settingStore'
-import { useAppModeStore } from '@/stores/appModeStore'
+import { useAppMode } from '@/composables/useAppMode'
 import { useBottomPanelStore } from '@/stores/workspace/bottomPanelStore'
 import { useRightSidePanelStore } from '@/stores/workspace/rightSidePanelStore'
 import { useSidebarTabStore } from '@/stores/workspace/sidebarTabStore'
@@ -145,12 +145,12 @@ const unifiedWidth = computed(() =>
 
 const { focusMode } = storeToRefs(workspaceStore)
 
-const appModeStore = useAppModeStore()
+const { mode } = useAppMode()
 const { activeSidebarTabId, activeSidebarTab } = storeToRefs(sidebarTabStore)
 const { bottomPanelVisible } = storeToRefs(useBottomPanelStore())
 const { isOpen: rightSidePanelVisible } = storeToRefs(rightSidePanelStore)
 const showOffsideSplitter = computed(
-  () => rightSidePanelVisible.value || appModeStore.mode === 'builder:select'
+  () => rightSidePanelVisible.value || mode.value === 'builder:select'
 )
 
 const sidebarPanelVisible = computed(() => activeSidebarTab.value !== null)