Update zh-TW.po again

Summary

• improve consistency of translated terms
• replace some translations with more appropriate terms

Checklist

• Closes #xxx
• I have tested my changes locally and validated that the functionality works as intended
• I have discussed this with core contributors already
• This pull request requires changes to the ROM set
  • I have opened a roms pull request - https://github.com/86Box/roms/pull/changeme/

References

N/A