Fix (or organize) registered typos in genres

[maztt]

Describe the bug
This is not necessarily an occurring or fatal bug, but a bug that may occur once #767 is implemented. I was able to capture it while I was working on that feature.

To Reproduce
I created the example on my computer, but it's possible to see it while searching through the current list.

Steps to reproduce the behavior:

1. Go to your search bar in your IDE;
2. Simply type genres: [
3. Scroll down to see the occurrances.

Expected behavior
I believe genres should be registered with a specified format, and a few of them are recorded with blank spaces, inconsistency on lowercase, duplicated names, and not split, as the screenshot shows below.

Screenshots

Desktop

• OS: Windows
• Browser: Google Chrome

Additional context

I believe this will naturally be kinda complicated to control, so every once in a while somebody should make a review on the current registered data and fix the typos.

EXTRA: Also a new instruction to https://github.com/brittanyrw/emojiscreen/blob/main/docs/card_overview.md#card-pull-request-checklist should help new contributors to correctly fill the fields.

[maztt]

I currently have two PRs that should help the issue.

One for fixing the typos.
Another one for adding the "EXTRA" suggestion.

@brittanyrw If you find this issue assertive, I'd like to contribute with both PRs in this Hacktoberfest.