### What problem does this PR solve?

feat: change all file names to lowercase #1574

### Type of change


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

### What problem does this PR solve?

feat: modify DuckDuckGo's style #918
### Type of change


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

### What problem does this PR solve?
feat: add KeywordExtractForm and BaiduForm and DuckDuckGoForm #918


### Type of change


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

### What problem does this PR solve?

feat: display the debugging results of each operator in a pop-up window
#918
### Type of change


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

translate graph and chat text

### What problem does this PR solve?

feat:  call the reset api before opening the run drawer each time #918
### Type of change


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

### What problem does this PR solve?

feat: add RelevantForm #918

### Type of change

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

### What problem does this PR solve?

feat: modify the style of the operator #918
### Type of change


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

### What problem does this PR solve?

feat: modify the name of an operator #918

### Type of change


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

### What problem does this PR solve?

feat: restrict classification operators cannot be connected to Answer
and other classification #918

### Type of change

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

### What problem does this PR solve?

feat: add CategorizeHandle #918

### Type of change


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

### What problem does this PR solve?
feat: change nodes to circular #918

### Type of change


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

### What problem does this PR solve?

feat: add DynamicCategorize #918

### Type of change

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

### What problem does this PR solve?
feat: duplicate node #918


### Type of change


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

### What problem does this PR solve?
feat: add delete menu to graph node #918

### Type of change

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

### What problem does this PR solve?

feat: when a node of the graph is selected, the border of the node is
highlighted. #918

### Type of change


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

### What problem does this PR solve?

feat: set the anchor points of all nodes to be enterable and exitable
#918

### Type of change


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

### What problem does this PR solve?

feat: add icon to graph nodes #918

### Type of change


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

### What problem does this PR solve?
feat: add custom edge
feat: add flow card
feat: add store for canvas
#918 

### Type of change

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

### What problem does this PR solve?
feat: build react flow nodes and edges from mock data #918

### Type of change

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

### What problem does this PR solve?

feat: handle operator drag
feat: add FlowCanvas
#592

### Type of change

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