Fix Genre

[Katsute]

⚠ DEVELOPER NOTICE:

• Genre#asEnum is now deprecated. Use Genre#asAnimeGenre or Genre#asMangaGenre.
• Genre#getId is now deprecated. Use Genre#getAnimeGenreID or Genre#getMangaGenreID.
• Anime/Manga genres are not sorted alphabetically, they are ordered by genre ID.

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Prerequisites

If all checks are not passed then the pull request will be closed.

• I have checked that no other similar pull request already exists.
• My code follows the general code style as the rest of the code.
• I have checked that no sensitive information is exposed.
• Build compiles.
• Build passes test cases.
• I have added/modified documentation (if applicable).
• I have added/modified test cases (if applicable).

Issue: The main issue(s) that this pull request fixes.
#158, #159, #160

Workflow Run: The link to the MyAnimeList CI workflow run for your branch. Check README for guide on remote tests.
https://github.com/Katsute/Mal4J/actions/runs/737054101

Changes Made

List any changes made and/or other relevant issues.

• Fixed Genre enum is mapped incorrectly #158 (incorrect genre IDs)
• Fixed Missing Genre enums #159 (missing enums)
• Fixed Anime genres do not match Manga genres #160 (different IDs for Anime/Manga genres)