Fix CI: update eslint config, prettier, and TypeScript types

Author: raymond-lam

.prettierrc

@@ -4,7 +4,7 @@
   "semi": true,
   "tabWidth": 2,
   "bracketSpacing": true,
-  "jsxBracketSameLine": false,
+  "bracketSameLine": false,
   "arrowParens": "always",
   "endOfLine": "auto",
   "trailingComma": "all"

example/components/ErrorBoundary.tsx

@@ -18,7 +18,7 @@ interface State {
  * Container for potentially error generating components.
  * Triggers the optional onErr function with error message as string.
  * Provides the option to attempt rendering the children again.
- * 
+ *
  * NOTE: This MUST be a class component because React's componentDidCatch
  * lifecycle method is only available in class components. There is no
  * hook equivalent for error boundaries.