develop (#43)

* fix(ts): use strict mode strictNullChecks etc

* chore: Use extended React.HTMLAttributes<> (#41)

* refactor(code-format): add prettier closes #42

* feat(renderer): add snap to grid option closes #20

* chore(dependabot): use develop as target branch

dist/components/Handle/index.d.ts

@@ -0,0 +1,10 @@
+import React from 'react';
+import { HandleType, Position, OnConnectFunc } from '../../types';
+interface HandleProps {
+    type: HandleType;
+    position: Position;
+    onConnect?: OnConnectFunc;
+    isValidConnection?: () => boolean;
+}
+declare const Handle: React.MemoExoticComponent<({ onConnect, type, position, isValidConnection, ...rest }: HandleProps) => JSX.Element>;
+export default Handle;