close https://github.com/go-gitea/gitea/issues/24368 ## what my pull request does Since the official documentation states that custom bots do not support hyperlink functionality, simply adding it without making some formatting changes would result in an unappealing output. Therefore, I have modified the formatting of the output. Currently, it is only used for Feishu. --- [docs](https://open.feishu.cn/document/uAjLw4CM/ukTMukTMukTM/im-v1/message/create_json#%E8%B6%85%E9%93%BE%E6%8E%A5%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E) <img width="641" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/360e1c81-ab64-4ef6-851e-aa450d6e85a4"> - Issue <img width="423" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/519f6fae-81ab-4ec8-89b8-f6a73ff93783"> - Issue Comment <img width="548" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/749c0d1c-3657-431e-b787-8bf4c23cce83"> - Assign <img width="431" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/066f99e5-eabb-455d-91fb-a8359cc26dc7"> <img width="457" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/c6c10f99-db83-46ef-a775-4c91979fa68f"> - Merge <img width="408" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/e627bf43-5954-45aa-acf6-261ee046802f"> - PullRequest <img width="425" alt="image" src="https://github.com/go-gitea/gitea/assets/75628309/72cfa714-d3fa-4fb9-abdd-e8508d756056">
