chore: add support to existing leaderboard APIs

[gastongaiduk]

Changes

• Adding support to these two endpoints
• • https://api-docs.retroachievements.org/v1/get-game-leaderboards.html
• • https://api-docs.retroachievements.org/v1/get-leaderboard-entries.html
• Fixing one table format
• Adding .idea folder to .gitignore

[gastongaiduk]

@official-wizard do you mind to review this one whenever you're available? I'd also like to know if we can make a release after this one is released.

[wescopeland]

Hey @gastongaiduk !

Unfortunately I don't know Kotlin so I'm not in a position I can review this PR. However, I do have a small request :-)
Would you be willing to also update api-docs to show these new Kotlin integrations, similar to what we have for other pages?

[official-wizard]

Merged & Deployed

[gastongaiduk]

Hey @gastongaiduk !

Unfortunately I don't know Kotlin so I'm not in a position I can review this PR. However, I do have a small request :-)

Would you be willing to also update api-docs to show these new Kotlin integrations, similar to what we have for other pages?

Sure thing @wescopeland 👍