Add Text2Image UI, UI tests, Readme, and Docker support

[WenjiaoYue]

Description

1. Added Text2Image UI that allows users to input text and generate images.
2. Implemented UI tests for the Text2Image to ensure functionality.
3. Added the README with instructions and configuration details for using the Text2Image feature.
4. Added the Dockerfile to include necessary dependencies for the Text2Image, supporting containerized deployment.

Issues

n/a.

Type of change

List the type of change like below. Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds new functionality)
• [ ] Breaking change (fix or feature that would break existing design and interface)
• [ ] Others (enhancement, documentation, validation, etc.)

Dependencies

CI pass.

Tests

npm run dev