- Implemented a new `CreateBottomSheet` Composable to provide users with options to create AI, Group Chat, or Moment.
- Added new drawable resources for the create options: `ic_create_ai.xml`, `ic_create_group_chat.xml`, `ic_create_monent.xml`, and `ic_create_close.xml`.
- Integrated the `CreateBottomSheet` into the `IndexScreen`. Clicking the "+" button now opens this bottom sheet instead of directly navigating to new post creation.
- Updated `IndexViewModel` to manage the visibility state of the `CreateBottomSheet`.
- Added string resources for the Create Bottom Sheet in English, Chinese, and Japanese.
- Ensured proper navigation and tourist mode checks for each create option.
- Implemented graceful dismissal of the bottom sheet with animations.
Refactors password validation logic to use a common `PasswordValidator` utility. This ensures consistent password validation rules across different parts of the application, including:
- User login
- Email sign-up
- Password change
- Account removal
Also adds a string resource for password too long error message.
