fix(app): replace remark with react-markdown (#14942)

Closes RQA-2587 and RQA-2566

After the vite migration, the app would crash any time the release notes markdown file needed parsing, because remark decides to invoke process.cwd() for some reason. Webpack can mock "process" out, but there's no 1:1 analogous solution with Vite.

Although there's probably some hacky way do accomplish the same thing, remark-react has been deprecated for over three years, so that's more incentive to migrate.

After testing a few options, react-markdown is relatively lightweight and properly overrides the markdown as desired (ie, no additional changes need to be made to the markdown for the refactor). It also doesn't have the same Vfile lib dependency that is the source of the "process" issue, so no more crashing when parsing release notes. It's also well-maintained, etc.

app/package.json

@@ -49,6 +49,7 @@
     "react-error-boundary": "^4.0.10",
     "react-i18next": "13.5.0",
     "react-intersection-observer": "^8.33.1",
+    "react-markdown": "9.0.1",
     "react-redux": "8.1.2",
     "react-router-dom": "5.3.4",
     "react-select": "5.4.0",
@@ -57,8 +58,6 @@
     "redux": "4.0.5",
     "redux-observable": "1.1.0",
     "redux-thunk": "2.3.0",
-    "remark": "9.0.0",
-    "remark-react": "4.0.3",
     "reselect": "4.0.0",
     "rxjs": "^6.5.1",
     "semver": "5.5.0",

app/src/molecules/ReleaseNotes/index.tsx

@@ -1,26 +1,14 @@
 import * as React from 'react'
-import remark from 'remark'
-import reactRenderer from 'remark-react'
+import Markdown from 'react-markdown'
+
 import { StyledText } from '@opentrons/components'
+
 import styles from './styles.module.css'
+
 export interface ReleaseNotesProps {
   source?: string | null
 }
 
-// ToDo (kk:09/22/2023) This component should be updated in the future
-// since the package we use hasn't been updated more than 2 years.
-// Also the creator recommends users to replace remark-react with rehype-react.
-const renderer = remark().use(reactRenderer, {
-  remarkReactComponents: {
-    div: React.Fragment,
-    h2: HeaderText,
-    ul: React.Fragment,
-    li: ParagraphText,
-    p: ParagraphText,
-    a: ExternalLink,
-  },
-})
-
 const DEFAULT_RELEASE_NOTES = 'We recommend upgrading to the latest version.'
 
 export function ReleaseNotes(props: ReleaseNotesProps): JSX.Element {
@@ -29,7 +17,18 @@ export function ReleaseNotes(props: ReleaseNotesProps): JSX.Element {
   return (
     <div className={styles.release_notes}>
       {source != null ? (
-        renderer.processSync(source).contents
+        <Markdown
+          components={{
+            div: undefined,
+            ul: undefined,
+            h2: HeaderText,
+            li: ParagraphText,
+            p: ParagraphText,
+            a: ExternalLink,
+          }}
+        >
+          {source}
+        </Markdown>
       ) : (
         <p>{DEFAULT_RELEASE_NOTES}</p>
       )}