feat: add a new gallery page

[xiaohanyu]

Description

Similar to PPResume's gallery page

Let us create a new gallery page for YAMLResume showcases. The URL should be https://yamlresume.dev/gallery

This task depends on yamlresume/yamlresume#74

[Optional] Possible Solutions

NA

Acceptance Criteria

• hosted a new gallery page on yamlresume.dev, provides tens of show cases

Todo list

NA