added an index.ts file within every component folder inside of renderer/src/components for two reasons:

1. For shorter import paths (e.g import { Backdrop } from ../backdrop instead of import { Backdrop } from ../backdrop/backdrop)
2. For more power and flexibility. Ability to export multiple files from the same UI component while being modular and reusable while still having a short import path, for example:

Components/
/button
button.css.ts
button.ts
utils.ts
actions.ts
...