refacto(*): remove everything about default workspace (#9157)

## Summary
- [x] Remove defaultWorkspace in user
- [x] Remove all occurrence of defaultWorkspace and defaultWorkspaceId
- [x] Improve activate workspace flow
- [x] Improve security on social login
- [x] Add `ImpersonateGuard`
- [x] Allow to use impersonation with couple `User/Workspace`
- [x] Prevent unexpected reload on activate workspace
- [x] Scope login token with workspaceId 

Fix https://github.com/twentyhq/twenty/issues/9033#event-15714863042

packages/twenty-server/src/utils/workspace-url.util.ts

@@ -1,33 +0,0 @@
-import { isDefined } from 'src/utils/is-defined';
-
-export const buildWorkspaceURL = (
-  baseUrl: string,
-  subdomain: string | null,
-  {
-    withPathname,
-    withSearchParams,
-  }: {
-    withPathname?: string;
-    withSearchParams?: Record<string, string | number>;
-  } = {},
-) => {
-  const url = new URL(baseUrl);
-
-  if (subdomain && subdomain.length > 0) {
-    url.hostname = subdomain + '.' + url.hostname;
-  }
-
-  if (withPathname) {
-    url.pathname = withPathname;
-  }
-
-  if (withSearchParams) {
-    Object.entries(withSearchParams).forEach(([key, value]) => {
-      if (isDefined(value)) {
-        url.searchParams.set(key, value.toString());
-      }
-    });
-  }
-
-  return url;
-};