(v0.2.0) More search engines and optimization of memory modules.

1. 优化了记忆模块，让记忆配置更方便了
2. 添加了更多的搜索引擎选项：bing、Google、Brave、Exa、Serper、博查
3. 给出了机器人向外发送图片时，如果返回为base64的解决方案，可以在机器人通用配置中添加图床，未来会给出更多图床选择，目前只支持easyimage2
4. 新增了应用主题：棉花糖
5. 修复了一些我记不清的bug哈哈哈

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1. Optimized the memory module to make memory configuration more convenient.
2. Added more search engine options: Bing, Google, Brave, Exa, Serper, and Bocha.
3. Provided a solution for when the robot sends out images and the return is in base64 format. You can add an image hosting service to the robot's general configuration. In the future, more image hosting options will be provided, currently only easyimage2 is supported.
4. Added a new application theme: Cotton Candy.
5. Fixed some bugs that I can't remember haha.