Bump postcss from 7.0.23 to 7.0.36

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.23 to 7.0.36.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/7.0.23...7.0.36)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

src/index.js

@@ -67,11 +67,8 @@ export default {
       this.body = ''
     },
     onKeyUp (e) {
-      const keysToIgnore = ['Shift', 'Meta', 'Control', 'Alt', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight']
-      if (keysToIgnore.includes(e.key)) return
-
       let caretPosition = this.getCaretPos()
-      if (e.key === 'Enter') {
+      if (e.keyCode === 13) { // Enter key
         caretPosition++
       }
       this.body = e.target.innerText