remove custom grid

component/custom-grid.tsx

@@ -1,16 +1,16 @@
 import React from 'react';
 import { G, Line } from 'react-native-svg';
-import * as scale from 'd3-scale'
+import { ScaleLinear } from 'd3-scale'
 import { colors } from '../styles';
 
-type scaleFunction = (value: number) => number;
+type scaleFunction = ScaleLinear<number, number>;
 
 interface CustomGridProps {
   y: scaleFunction;
-  ticks: number[];
+  ticks: Array<number>;
 }
 
-export const CustomGrid: React.FC = ({ y, ticks }: Partial<CustomGridProps>) => {
+export const CustomGrid: React.FC<CustomGridProps> = ({ y, ticks }) => {
   const [firstTick, ...remainingTicks] = ticks;
   const dashArray = [1, 3];
   const strokeSolidWidth = 0.2;