feat: add collapse/expand all toggle to right panel tabs (#9333)

## Summary
Adds a collapse/expand all toggle button to all parameter and error tabs
in the right side panel, letting users quickly collapse or expand all
accordion sections at once.

## Changes
- **New component**: `CollapseToggleButton.vue` — a reusable icon button
(list-collapse / list-tree icon) with tooltip, bound via `v-model`
- **Error tab**: Toggle collapses/expands all error groups; per-group
state is now managed through `isSectionCollapsed` /
`setSectionCollapsed` helpers
- **Nodes tab** (`TabNodes.vue`): Per-node `collapseMap`; toggle
overrides per-section state; defaults to collapsed (nodes tab default
was already collapsed)
- **Normal inputs tab** (`TabNormalInputs.vue`): Per-node `collapseMap`
+ `advancedCollapsed`; toggle covers both normal and advanced sections;
defaults to collapsed when multiple nodes selected
- **Subgraph inputs tab** (`TabSubgraphInputs.vue`): Toggle covers both
main and advanced inputs sections
- **Global parameters tab** (`TabGlobalParameters.vue`): Toggle bound to
single `SectionWidgets`
- **i18n**: Added `g.collapseAll` and `g.expandAll` keys

## Review Focus
- `isAllCollapsed` getter in each tab: reads from the same per-section
state so the toggle accurately reflects current state rather than being
independently tracked
- `TabNormalInputs`: multi-node selection default collapse behaviour is
preserved through `isSectionCollapsed` fallback logic

## Screenshots
<img width="778" height="643" alt="image"
src="https://github.com/user-attachments/assets/04d07f32-5135-47f9-b029-78ca78a996fb"
/>


┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9333-feat-add-collapse-expand-all-toggle-to-right-panel-tabs-3176d73d36508123ba22d6e81983bb1b)
by [Unito](https://www.unito.io)

src/locales/en/main.json

@@ -305,7 +305,9 @@
     "profile": "Profile",
     "noItems": "No items",
     "recents": "Recents",
-    "partner": "Partner"
+    "partner": "Partner",
+    "collapseAll": "Collapse all",
+    "expandAll": "Expand all"
   },
   "manager": {
     "title": "Nodes Manager",