Fix: Auto detect updated file encoding and read file with encoding[INS-5017]

[cwangsmv]

Changes:

• Move read file from render process to main process, adding the file encoding detection logic.
• Implement a file encoding picker component for user to select different coding to parse file.

[jackkav]

This is cool, I was wondering when we were going to need more encodings when I was working on this #8311

[cwangsmv]

This is cool, I was wondering when we were going to need more encodings when I was working on this #8311

If we need to support more encodings, I would suggest using iconv-lite rather than the Nodejs built-in Buffer.toString or fs readFile method since iconv-lite supports a wide range of encodings