### What problem does this PR solve?
Feat: The Begin and IterationStart operators cannot be deleted using
shortcut keys #4287
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add the iteration Node #4242
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
show avatar dialog instead of default
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
feat: highlight the nodes that the workflow passes through #918
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: add CreateFlowModal #918
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: add OperateDropdown
feat: send debug message #918
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: fetch flow #918
feat: save graph
### 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)
