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/en.ts

@@ -858,6 +858,10 @@ Example: Virtual Hosted Style`,
       tongyiBaseUrlTip:
         'For Chinese users, no need to fill in or use https://dashscope.aliyuncs.com/compatible-mode/v1. For international users, use https://dashscope-intl.aliyuncs.com/compatible-mode/v1',
       tongyiBaseUrlPlaceholder: '(International users only, please see tip)',
+      minimaxBaseUrlTip:
+        'International users only: use https://api.minimax.io/v1',
+      minimaxBaseUrlPlaceholder:
+        '(International users only, fill in https://api.minimax.io/v1)',
       modify: 'Modify',
       systemModelSettings: 'Set default models',
       chatModel: 'LLM',