chore: replace Parcel with Vite

[eglitise]

Parcel v1 is greatly outdated and is holding back many important dependency upgrades, like Electron and antd. Several possible replacements for it exist (Parcel v2, Webpack, Vite, etc.), which were examined and tested on a fresh Electron+React project. Vite seemed to be the most viable candidate, though, like the others, it also requires some refactoring beforehand. This issue will be used to track the migration progress.

Related tasks:

• #1444
• #1447
• #1514