chore: Add unified error handling banner in all demo apps

[msluszniak]

Description

This PR adds unified error banner that shows the error details.

Introduces a breaking change?

• Yes
• No

Type of change

• Bug fix (change which fixes an issue)
• New feature (change which adds functionality)
• Documentation update (improves or adds clarity to existing documentation)
• Other (chores, tests, code style improvements etc.)

Tested on

• iOS
• Android

Testing instructions

• Run demo apps and try to cause errors that propagates from our hooks / models (not some random errors).

Screenshots

Banners should look like this:

Related issues

Closes #225

Checklist

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have updated the documentation accordingly
• My changes generate no new warnings

Additional notes

[NorbertKlockiewicz]

computer-vision:

• classification/index.tsx
• ocr_vertical/index.tsx
• vision_camera/index.tsx

llm:

• multimodal_llm/index.tsx

Those screens are missing the new error handling