Refa: add MiniMax-M2 and remove deprecated MiniMax models (#11642)

### What problem does this PR solve?

Add MiniMax-M2 and remove deprecated models.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Refactoring

web/src/locales/zh.ts

@@ -813,6 +813,8 @@ General：实体和关系提取提示来自 GitHub - microsoft/graphrag：基于
       tongyiBaseUrlTip:
         '对于中国用户，不需要填写或使用 https://dashscope.aliyuncs.com/compatible-mode/v1。对于国际用户，使用 https://dashscope-intl.aliyuncs.com/compatible-mode/v1。',
       tongyiBaseUrlPlaceholder: '(仅国际用户需要)',
+      minimaxBaseUrlTip: '仅国际用户：使用 https://api.minimax.io/v1。',
+      minimaxBaseUrlPlaceholder: '(仅国际用户填写 https://api.minimax.io/v1)',
       modify: '修改',
       systemModelSettings: '设置默认模型',
       chatModel: 'LLM',