Mock react-markdown to fix jest issue

Author: jb3

jest.config.js

@@ -4,6 +4,7 @@ module.exports = {
     },
     moduleNameMapper: {
         '\\.svg$': '<rootDir>/src/tests/__mocks__/svg.ts',
+        "^react-markdown$": "<rootDir>/src/__mocks__/react-markdown.tsx",
     },
     collectCoverageFrom: [
         "src/**/*.{js,jsx,ts,tsx}",

src/__mocks__/react-markdown.tsx

@@ -0,0 +1,12 @@
+import React from 'react';
+
+interface ReactMarkdownProps {
+  children: string;
+  [key: string]: any;
+}
+
+const ReactMarkdown: React.FC<ReactMarkdownProps> = ({ children }) => {
+  return <div data-testid="react-markdown">{children}</div>;
+};
+
+export default ReactMarkdown;