### What problem does this PR solve?
feat: Support shortcut keys to copy nodes #3283
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### 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: catch errors when sending messages #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: add FlowHeader and delete edge #918
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat: fixed issue with threshold translation #882
feat: add NodeContextMenu
### Type of change
- [ ] 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)
