[backport cloud/1.37] Workspaces 4 members invites (#8301)

## Summary

Backport of #8245 to cloud/1.37.

Add team workspace member management and invite system.

- Add members panel with role management (owner/admin/member) and member
removal
- Add invite system with email invites, pending invite display, and
revoke functionality
- Add invite URL loading for accepting invites
- Add subscription panel updates for member management
- Add i18n translations for member and invite features

## Conflict Resolution

- `src/components/dialog/GlobalDialog.vue`: Added missing
`DialogPassThroughOptions` import
- `src/locales/en/main.json`: Kept "nightly" section from main (was
present before PR)
- `src/platform/cloud/subscription/utils/subscriptionCheckoutUtil.ts`:
Deleted (file doesn't exist in cloud/1.37, only contains unrelated
method rename)

(cherry picked from commit 4771565486)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8301-backport-cloud-1-37-Workspaces-4-members-invites-2f36d73d36508119a388dac9d290efbd)
by [Unito](https://www.unito.io)

src/stores/workspaceAuthStore.ts

@@ -8,11 +8,11 @@ import {
   TOKEN_REFRESH_BUFFER_MS,
   WORKSPACE_STORAGE_KEYS
 } from '@/platform/auth/workspace/workspaceConstants'
-import { remoteConfig } from '@/platform/remoteConfig/remoteConfig'
 import { api } from '@/scripts/api'
 import { useFirebaseAuthStore } from '@/stores/firebaseAuthStore'
 import type { AuthHeader } from '@/types/authTypes'
 import type { WorkspaceWithRole } from '@/platform/auth/workspace/workspaceTypes'
+import { useFeatureFlags } from '@/composables/useFeatureFlags'
 
 const WorkspaceWithRoleSchema = z.object({
   id: z.string(),
@@ -44,6 +44,8 @@ export class WorkspaceAuthError extends Error {
 }
 
 export const useWorkspaceAuthStore = defineStore('workspaceAuth', () => {
+  const { flags } = useFeatureFlags()
+
   // State
   const currentWorkspace = shallowRef<WorkspaceWithRole | null>(null)
   const workspaceToken = ref<string | null>(null)
@@ -120,7 +122,7 @@ export const useWorkspaceAuthStore = defineStore('workspaceAuth', () => {
   }
 
   function initializeFromSession(): boolean {
-    if (!remoteConfig.value.team_workspaces_enabled) {
+    if (!flags.teamWorkspacesEnabled) {
       return false
     }
 
@@ -164,7 +166,7 @@ export const useWorkspaceAuthStore = defineStore('workspaceAuth', () => {
   }
 
   async function switchWorkspace(workspaceId: string): Promise<void> {
-    if (!remoteConfig.value.team_workspaces_enabled) {
+    if (!flags.teamWorkspacesEnabled) {
       return
     }