feat(vscode): add archive all sessions action (#1262)

* feat(vscode): add archive all sessions action

* Update packages/ui/src/components/layout/VSCodeLayout.tsx

Signed-off-by: Jake <101855602+jjdubski@users.noreply.github.com>

* fix: Fail-open default archives all sessions when workspace can't be resolved

* fix: Already-archived descendants are included in the archive call

* fix: add i18n for the newly added toasts

* Restore icon name from 'add-line' to 'add'

Signed-off-by: Jake <101855602+jjdubski@users.noreply.github.com>

* update: fix merge conflict and update code structure into components

---------

Signed-off-by: Jake <101855602+jjdubski@users.noreply.github.com>
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/lib/i18n/messages/uk.ts

@@ -2387,6 +2387,11 @@ export const dict: Record<I18nKey, string> = {
   "vscodeLayout.title.sessions": "Сесії",
   "vscodeLayout.title.sessionFallback": "Сесія",
   "vscodeLayout.actions.backToSessionsAria": "Назад до сесій",
+  "vscodeLayout.actions.archiveAllAria": "Архівувати всі сесії",
+  "vscodeLayout.actions.archiveAllConfirm": "Архівувати все",
+  "vscodeLayout.actions.archiveAllSuccess": "Заархівовано {count} сесій(ї)",
+  "vscodeLayout.actions.archiveAllError": "Не вдалося заархівувати {count} сесій(ї)",
+  "vscodeLayout.actions.cancel": "Скасувати",
   "vscodeLayout.actions.newSessionAria": "Нова сесія",
   "vscodeLayout.actions.openAgentManagerAria": "Відкрити менеджер агентів",
   "vscodeLayout.actions.resizeSessionsSidebarAria": "Змінити розмір бічної панелі сесій",