feat(languages): add League of Legends language (@hailfire805)

[Hailfire805]

Description

Adding collection of significant proper nouns from the MOBA League of Legends

Checks

• Adding quotes?
  • Make sure to include translations for the quotes in the description (or another comment) so we can verify their content.
• Adding a language or a theme?
  • If is a language, did you edit _list.json, _groups.json and add languages.json?
  • If is a theme, did you add the theme.css?
    • Also please add a screenshot of the theme, it would be extra awesome if you do so!
• Check if any open issues are related to this PR; if so, be sure to tag them below.
• Make sure the PR title follows the Conventional Commits standard. (https://www.conventionalcommits.org for more info)
• Make sure to include your GitHub username inside parentheses at the end of the PR title

Closes #

[Miodec]

Thanks

[Jabster28]

Is the rightToLeft supposed to be true in groups.json? All of the names are reversed and right-aligned:

@Hailfire805

[Jabster28]

Ah whoops, there's already a PR: #5597