Need quadratic style for edge

[boan-anbo]

Describe the bug

• The official solution for more than one edges between two nodes suggested for G6 is using quadratic line: https://g6.antv.vision/en/docs/manual/middle/elements/methods/multi-line

• However, Graphin only allows 'graphin-style': https://github.com/antvis/Graphin/blob/f578319990d545e24b340d2003522f90e3c9afdc/packages/graphin/src/Graphin.tsx#L175

• So two edges between two nodes become weird and the edges point to none of the nodes (top left on the picture):

Your Example Website or App

None

Steps to Reproduce the Bug or Issue

• Create two edges between two nodes

Expected behavior

Expect more than one edge between two nodes.edge

Screenshots or Videos

No response

Platform

• OS: Windows
• Browser: Chrome, React
• Version: [e.g. 91.1]

Additional context

No response