Fix: Search app AI summary ERROR And The tag set cannot be selected #9649 #9652 (#9664)

### What problem does this PR solve?
Fix: Search app AI summary ERROR And The tag set cannot be selected
#9649 #9652
- Search app AI summary ERROR: 'dict' object has no attribute 'split'
#9649
- fix The tag set cannot be selected in the knowledge base. #9652
- Added custom parameter options to the LlmSettingFieldItems component
- Adjusted the document preview height to improve page layout
adaptability

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/locales/en.ts

@@ -479,6 +479,7 @@ This auto-tagging feature enhances retrieval by adding another layer of domain-s
       improvise: 'Improvise',
       precise: 'Precise',
       balance: 'Balance',
+      custom: 'Custom',
       freedomTip: `A shortcut to 'Temperature', 'Top P', 'Presence penalty', and 'Frequency penalty' settings, indicating the freedom level of the model. This parameter has three options: Select 'Improvise' to produce more creative responses; select 'Precise' (default) to produce more conservative responses; 'Balance' is a middle ground between 'Improvise' and 'Precise'.`,
       temperature: 'Temperature',
       temperatureMessage: 'Temperature is required',

web/src/locales/zh-traditional.ts

@@ -454,6 +454,7 @@ export default {
       improvise: '即興創作',
       precise: '精確',
       balance: '平衡',
+      custom: '自定義',
       freedomTip: `“精確”意味著法學碩士會保守並謹慎地回答你的問題。“即興發揮”意味著你希望法學碩士能夠自由地暢所欲言。“平衡”是謹慎與自由之間的平衡。`,
       temperature: '溫度',
       temperatureMessage: '溫度是必填項',

web/src/locales/zh.ts

@@ -477,6 +477,7 @@ General：实体和关系提取提示来自 GitHub - microsoft/graphrag：基于
       improvise: '即兴创作',
       precise: '精确',
       balance: '平衡',
+      custom: '自定义',
       freedomTip: `“精确”意味着大语言模型会保守并谨慎地回答你的问题。 “即兴发挥”意味着你希望大语言模型能够自由地畅所欲言。 “平衡”是谨慎与自由之间的平衡。`,
       temperature: '温度',
       temperatureMessage: '温度是必填项',