fix translation files

feat(transcript): parse srt subtitles into json file + add max file size info below audio file input

remove episode form warning + add javascript validation when uploading a file to check if it's too
big to upload

- replace rollup config with vitejs
- use vite dev server during development to take advantage of
hot module replacement (HMR)
- add vite service using Vite library to load css and js assets
- update package.json scripts and remove unnecessary
dependencies
- update scripts/bundle-prepare.sh

closes #107