Summary: LiblibAI adds two new image generation models

Why It Matters: This shows they are adding more tools for users to make images.

What Changed:

• Two new image models were added: "基础算法F.2 Pro" and "基础算法F.2 Flex".
• The "Pixverse V5" and "MJ悠船V7" models were moved down the list.
• The "推荐筛选" (Recommended Filter) section was expanded with many new image links.
• The navigation items "视频生成", "图片生成", "数字人生成", and "生成器" were removed from the bottom of the page.
• The navigation item "数字人" was added to the bottom of the page.