feat(ios): refresh mobile settings layout (#15234)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Redesigned mobile Settings with localized sections, promotional
content, support actions, subscription access, and improved account
controls.
- Added sign-in prompts for signed-out users and clearer device-session
handling.
- Added a guided account-deletion flow with email confirmation and
completion messaging.
- Added App Store, download, team invitation, rating, and external
support links.
- **Bug Fixes**
- Improved interactive row behavior, keyboard accessibility, navigation,
and subscription availability.
  - Prevented account deletion for unresolved team owners.
- **Style**
- Refreshed mobile settings, subscription, profile, and promotional card
layouts.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: DarkSky <darksky2048@gmail.com>

packages/frontend/apps/ios/App/xc-universal-binary.sh

@@ -41,8 +41,9 @@ fi
 FFI_TARGET=${1}
 # path to source code root
 SRC_ROOT=${2}
-# Keep Cargo artifacts in a stable location that the rest of this script can reference.
-export CARGO_TARGET_DIR="${CARGO_TARGET_DIR:-$SRC_ROOT/../../../target}"
+# Keep Cargo artifacts in a stable repo-local location so Xcode does not inherit
+# a sandbox-specific CARGO_TARGET_DIR from the parent shell.
+export CARGO_TARGET_DIR="$SRC_ROOT/../../../target"
 # buildvariant from our xcconfigs
 BUILDVARIANT=$(echo "${3}" | tr '[:upper:]' '[:lower:]')