feat: add storage management features including user storage quota and usage tracking

- Updated database schema to include `storage_quota_bytes` and `plan` for users.
- Implemented storage usage calculations in `storageRepo` and added tests for storage functionality.
- Created `StorageManager` component to display and manage user storage.
- Enhanced user settings to show storage details and warnings for high usage.
- Added translations for new storage-related strings in English and Dutch.
- Updated styles for storage overview and details in CSS.

node_modules/.vite/vitest/da39a3ee5e6b4b0d3255bfef95601890afd80709/results.json

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