Feat: Add variable assignment node #10427 (#11058)

### What problem does this PR solve?

Feat: Add variable assignment node #10427

### Type of change


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

web/src/locales/en.ts

@@ -1547,6 +1547,9 @@ This delimiter is used to split the input text into several text pieces echo of
       codeDescription: 'It allows developers to write custom Python logic.',
       dataOperations: 'Data operations',
       dataOperationsDescription: 'Perform various operations on a Data object.',
+      variableAssigner: 'Variable assigner',
+      variableAssignerDescription:
+        'This component performs operations on Data objects, including extracting, filtering, and editing keys and values in the Data.',
       inputVariables: 'Input variables',
       runningHintText: 'is running...🕞',
       openingSwitch: 'Opening switch',

web/src/locales/zh.ts

@@ -1468,6 +1468,9 @@ General：实体和关系提取提示来自 GitHub - microsoft/graphrag：基于
       codeDescription: '它允许开发人员编写自定义 Python 逻辑。',
       dataOperations: '数据操作',
       dataOperationsDescription: '对数据对象执行各种操作。',
+      variableAssigner: '变量赋值器',
+      variableAssignerDescription:
+        '此组件对数据对象执行操作，包括提取、筛选和编辑数据中的键和值。',
       inputVariables: '输入变量',
       addVariable: '新增变量',
       runningHintText: '正在运行中...🕞',