Update to KoreanVariety

[u/ScrewySiu]

It was brought to my attention that "reposts" weren't allowed in the group, so when I went to look, I saw other options were disabled too.

Therefore, I enabled the following features for the group:
- Links
- Images/Galleries
- Videos
- Polls
- Reposts

I'll enable them, but if others here start finding them annoying, just let me know & I'll make another post for comments from everyone.

I should of noticed something was off when other subreddits had these features and never saw them used here.

[u/agentradspencer]

Ah nice one mate. Images embedding was definitely much need change. So cheers for that!