Add animals, desserts, foods, hobbies, house, and k-pop translations to the Korean locale file

[connie-feng]

Motivation / Background

This Pull Request has been created because I added Korean translations for the following:

• animals
• desserts
• foods
• hobbies
• house
• k-pop

Additional information

I have a TOPIK 6 certificate, which is the highest level certificate for Korean language proficiency. I have also cross-referenced the translations with Naver Dictionary and Google Translate.

Checklist

Before submitting the PR make sure the following are checked:

• This Pull Request is related to one change. Changes that are unrelated should be opened in separate PRs.
• Commit message has a detailed description of what changed and why. If this PR fixes a related issue include it in the commit message. Ex: [Fix #issue-number]
• Tests are added or updated if you fix a bug, refactor something, or add a feature.
• Tests and Rubocop are passing before submitting your proposed changes.

If you're proposing a new generator or locale:

• Double-check the existing generators documentation to make sure the new generator you want to add doesn't already exist.
• You've reviewed and followed the Contributing guidelines.

[psibi]

Thank you!